Dewey Decimal List

See also: the list of Library of Congress Classifications

Class 000 – Computer science, information & general works

000 Computer science, knowledge & systems

• 000 Computer science, information & general works
  
• 001 Knowledge
  
• 002 The book (writing, libraries, and book-related topics)
  
• 003 Systems
  
• 004 Data processing & computer science
  
• 005 Computer programming, programs & data
  
• 006 Special computer methods
  
• 007–009 [Unassigned]
  

010 Bibliographies

• 010 Bibliography
  
• 011 Bibliographies
  
• 012 Bibliographies of individuals
  
• 013 [Unassigned]
  
• 014 Bibliographies of anonymous & pseudonymous works
  
• 015 Bibliographies of works from specific places
  
• 016 Bibliographies of works on specific subjects
  
• 017 General subject catalogs
  
• 018 Catalogs arranged by author, date, etc.
  
• 019 Dictionary catalogs
  

020 Library & information sciences

• 020 Library & information sciences
  
• 021 Library relationships (with archives, information centers, etc.)
  
• 022 Administration of physical plant
  
• 023 Personnel management
  
• 024 [Unassigned]
  
• 025 Library operations
  
• 026 Libraries for specific subjects
  
• 027 General libraries
  
• 028 Reading & use of other information media
  
• 029 [Unassigned]
  

030 Encyclopedias & books of facts

• 030 General encyclopedic works
  
• 031 Encyclopedias in American English
  
• 032 Encyclopedias in English
  
• 033 Encyclopedias in other Germanic languages
  
• 034 Encyclopedias in French, Occitan, and Catalan
  
• 035 Encyclopedias in Italian, Romanian, and related languages
  
• 036 Encyclopedias in Spanish & Portuguese
  
• 037 Encyclopedias in Slavic languages
  
• 038 Encyclopedias in Scandinavian languages
  
• 039 Encyclopedias in other languages
  

040 Unassigned (formerly Biographies)

050 Magazines, journals & serials

• 050 General serial publications
  
• 051 Serials in American English
  
• 052 Serials in English
  
• 053 Serials in other Germanic languages
  
• 054 Serials in French, Occitan, and Catalan
  
• 055 Serials in Italian, Romanian, and related languages
  
• 056 Serials in Spanish & Portuguese
  
• 057 Serials in Slavic languages
  
• 058 Serials in Scandinavian languages
  
• 059 Serials in other languages
  

060 Associations, organizations & museums

• 060 General organizations & museum science
  
• 061 Organizations in North America
  
• 062 Organizations in British Isles; in England
  
• 063 Organizations in central Europe; in Germany
  
• 064 Organizations in France & Monaco
  
• 065 Organizations in Italy & adjacent islands
  
• 066 Organizations in Iberian peninsula & adjacent islands
  
• 067 Organizations in eastern Europe; in Russia
  
• 068 Organizations in other geographic areas
  
• 069 Museum science
  

070 News media, journalism & publishing

• 070 News media, journalism, and publishing
  
• 071 Newspapers in North America
  
• 072 Newspapers in British Isles; in England
  
• 073 Newspapers in central Europe; in Germany
  
• 074 Newspapers in France & Monaco
  
• 075 Newspapers in Italy & adjacent islands
  
• 076 Newspapers in Iberian peninsula & adjacent islands
  
• 077 Newspapers in eastern Europe; in Russia
  
• 078 Newspapers in Scandinavia
  
• 079 Newspapers in other geographic areas
  

080 Quotations

• 080 General collections
  
• 081 Collections in American English
  
• 082 Collections in English
  
• 083 Collections in other Germanic languages
  
• 084 Collections in French, Occitan, Catalan
  
• 085 Collections in Italian, Romanian, & related languages
  
• 086 Collections in Spanish & Portuguese
  
• 087 Collections in Slavic languages
  
• 088 Collections in Scandinavian languages
  
• 089 Collections in other languages
  

090 Manuscripts & rare books

• 090 Manuscripts and rare books
  
• 091 Manuscripts
  
• 092 Block books
  
• 093 Incunabula
  
• 094 Printed books
  
• 095 Books notable for bindings
  
• 096 Books notable for illustrations
  
• 097 Books notable for ownership or origin
  
• 098 Prohibited works, forgeries, and hoaxes
  
• 099 Books notable for format

Class 100 – Philosophy & psychology

100 Philosophy

• 100 Philosophy & psychology
  
• 101 Theory of philosophy
  
• 102 Miscellany
  
• 103 Dictionaries & encyclopedias
  
• 104 [Unassigned]
  
• 105 Serial publications
  
• 106 Organizations & management
  
• 107 Education, research, related topics of philosophy
  
• 108 Groups of people
  
• 109 History & collected biography
  

110 Metaphysics

• 110 Metaphysics
  
• 111 Ontology
  
• 112 No longer used—formerly Methodology
  
• 113 Cosmology (Philosophy of nature)
  
• 114 Space
  
• 115 Time
  
• 116 Change
  
• 117 Structure
  
• 118 Force and energy
  
• 119 Number and quantity
  

120 Epistemology

• 120 Epistemology, causation, and humankind
  
• 121 Epistemology (Theory of knowledge)
  
• 122 Causation
  
• 123 Determinism and indeterminism
  
• 124 Teleology
  
• 125 No longer used—formerly Infinity
  
• 126 The self
  
• 127 The unconscious & the subconscious
  
• 128 Humankind
  
• 129 Origin & destiny of individual souls
  

130 Parapsychology & occultism

• 130 Parapsychology & occultism
  
• 131 Parapsychological and occult methods for achieving well-being, happiness, success
  
• 132 No longer used—formerly Mental derangements
  
• 133 Specific topics in parapsychology & occultism
  
• 134 No longer used—formerly Mesmerism & Clairvoyance
  
• 135 Dreams & mysteries
  
• 136 No longer used—formerly Mental characteristics
  
• 137 Divinatory graphology
  
• 138 Physiognomy
  
• 139 Phrenology
  

140 Philosophical schools of thought

• 140 Specific philosophical schools and viewpoints
  
• 141 Idealism & related systems & doctrines
  
• 142 Critical philosophy
  
• 143 Bergsonism & intuitionism
  
• 144 Humanism & related systems & doctrines
  
• 145 Sensationalism
  
• 146 Naturalism & related systems & doctrines
  
• 147 Pantheism & related systems & doctrines
  
• 148 Dogmatism, eclecticism, liberalism, syncretism, & traditionalism
  
• 149 Other philosophical systems & doctrines
  

150 Psychology

• 150 Psychology
  
• 151 No longer used—formerly Intellect
  
• 152 Sensory perception, movement, emotions, & physiological drives
  
• 153 Conscious mental processes & intelligence
  
• 154 Subconscious & altered states & processes
  
• 155 Differential & developmental psychology
  
• 156 Comparative psychology
  
• 157 No longer used—formerly Emotions
  
• 158 Applied psychology
  
• 159 No longer used—formerly Will
  

160 Philosophical logic

• 160 Philosophical logic
  
• 161 Induction
  
• 162 Deduction
  
• 163–164 Not assigned or no longer used
  
• 165 Fallacies & sources of error
  
• 166 Syllogisms
  
• 167 Hypotheses
  
• 168 Argument & persuasion
  
• 169 Analogy
  

170 Ethics

• 170 Ethics (Moral philosophy)
  
• 171 Ethical systems
  
• 172 Political ethics
  
• 173 Ethics of family relationships
  
• 174 Occupational ethics
  
• 175 Ethics of recreation, leisure, public performances, communication
  
• 176 Ethics of sex & reproduction
  
• 177 Ethics of social relations
  
• 178 Ethics of consumption
  
• 179 Other ethical norms
  

180 Ancient, medieval, & Eastern philosophy

• 180 Ancient, medieval, eastern philosophy
  
• 181 Eastern philosophy
  
• 182 Pre-Socratic Greek philosophies
  
• 183 Sophistic, Socratic, related Greek philosophies
  
• 184 Platonic philosophy
  
• 185 Aristotelian philosophy
  
• 186 Skeptic & Neoplatonic philosophies
  
• 187 Epicurean philosophy
  
• 188 Stoic philosophy
  
• 189 Medieval Western philosophy
  

190 Modern Western philosophy (19th-century, 20th-century)

• 190 Modern Western & other noneastern philosophy
  
• 191 Philosophy of the United States and Canada
  
• 192 Philosophy of the British Isles
  
• 193 Philosophy of Germany and Austria
  
• 194 Philosophy of France
  
• 195 Philosophy of Italy
  
• 196 Philosophy of Spain and Portugal
  
• 197 Philosophy of Russia
  
• 198 Philosophy of Scandinavia & Finland
  
• 199 Philosophy in other geographic areas

Class 200 – Religion

200 Religion

• 200 Religion
  
• 201 Religious mythology, general classes of religion, interreligious relations and attitudes, social theology
  
• 202 Doctrines
  
• 203 Public worship and other practices
  
• 204 Religious experience, life, practice
  
• 205 Religious ethics
  
• 206 Leaders and organization
  
• 207 Missions and religious education
  
• 208 Sources
  
• 209 Sects and reform movements
  

210 Philosophy & theory of religion

• 210 Philosophy & theory of religion
  
• 211 Concepts of God
  
• 212 Existence, ways of knowing God, attributes of God
  
• 213 Creation
  
• 214 Theodicy
  
• 215 Science & religion
  
• 216 No longer used—formerly Evil
  
• 217 No longer used—formerly Prayer
  
• 218 Humankind
  
• 219 No longer used—formerly Analogies
  

220 The Bible

• 220 Bible
  
• 221 Old Testament (Tanakh)
  
• 222 Historical books of Old Testament
  
• 223 Poetic books of Old Testament
  
• 224 Prophetic books of Old Testament
  
• 225 New Testament
  
• 226 Gospels & Acts
  
• 227 Epistles
  
• 228 Revelation (Apocalypse)
  
• 229 Apocrypha, pseudepigrapha, & intertestamental works
  

230 Christianity

• 230 Christianity
  
• 231 God
  
• 232 Jesus Christ & his family
  
• 233 Humankind
  
• 234 Salvation & grace
  
• 235 Spiritual beings
  
• 236 Eschatology
  
• 237 No longer used—formerly Future state
  
• 238 Creeds, confessions of faith, covenants, & catechisms
  
• 239 Apologetics & polemics
  

240 Christian practice & observance

• 240 Christian moral and devotional theology
  
• 241 Christian ethics
  
• 242 Devotional literature
  
• 243 Evangelistic writings for individuals and families
  
• 244 No longer used—formerly Religious fiction
  
• 245 No longer used—formerly Hymnology
  
• 246 Use of art in Christianity
  
• 247 Church furnishings & related articles
  
• 248 Christian experience, practice, life
  
• 249 Christian observances in family life
  

250 Christian orders & local church

• 250 Local Christian church and Christian religious orders
  
• 251 Preaching (Homiletics)
  
• 252 Texts of sermons
  
• 253 Pastoral office and work (Pastoral theology)
  
• 254 Parish administration
  
• 255 Religious congregations & orders
  
• 256 No longer used—formerly Religious societies
  
• 257 No longer used—formerly Parochial schools, libraries, etc.
  
• 258 No longer used—formerly Parochial medicine
  
• 259 Pastoral care of families, of specific groups of people
  

260 Social & ecclesiastical theology

• 260 Christian social and ecclesiastical theology
  
• 261 Social theology and interreligious relations and attitudes
  
• 262 Ecclesiology
  
• 263 Days, times, places of religious observance
  
• 264 Public worship
  
• 265 Sacraments, other rites & acts
  
• 266 Missions
  
• 267 Associations for religious work
  
• 268 Religious education
  
• 269 Spiritual renewal
  

270 History of Christianity

• 270 History, geographic treatment, biography of Christianity
  
• 271 Religious congregations and orders in church history
  
• 272 Persecutions in church history
  
• 273 Doctrinal controversies and heresies in general church history
  
• 274 Christianity in Europe
  
• 275 Christianity in Asia
  
• 276 Christianity in Africa
  
• 277 Christianity in North America
  
• 278 Christianity in South America
  
• 279 History of Christianity in other areas
  

280 Christian denominations

• 280 Denominations and sects of Christian church
  
• 281 Early church & Eastern churches
  
• 282 Roman Catholic Church
  
• 283 Anglican churches
  
• 284 Protestant denominations of Continental origin & related body
  
• 285 Presbyterian churches, Reformed churches centered in America, Congregational churches
  
• 286 Baptist, Restoration Movement, Adventist churches
  
• 287 Methodist churches; churches related to Methodism
  
• 288 No longer used—formerly Unitarian
  
• 289 Other denominations & sects
  

290 Other religions

• 290 Other religions
  
• 291 No longer used—formerly Comparative religion
  
• 292 Classical religion (Greek & Roman religion)
  
• 293 Germanic religion
  
• 294 Religions of Indic origin
  
• 295 Zoroastrianism (Mazdaism, Parseeism)
  
• 296 Judaism
  
• 297 Islam, Bábism & Bahá'í Faith
  
• 298 No longer used—formerly Mormonism
  
• 299 Religions not provided for elsewhere

Class 300 – Social sciences

300 Social sciences, sociology & anthropology

• 300 Social sciences
  
• 301 Sociology & anthropology
  
• 302 Social interaction
  
• 303 Social processes
  
• 304 Factors affecting social behavior
  
• 305 Groups of people
  
• 306 Culture & institutions
  
• 307 Communities
  
• 308 No longer used—formerly Polygraphy
  
• 309 No longer used—formerly History of sociology
  

310 Statistics

• 310 Collections of general statistics
  
• 311 No longer used—formerly Theory and methods
  
• 312 No longer used—formerly Population
  
• 313 No longer used—formerly Special topics
  
• 314 General statistics of Europe
  
• 315 General statistics of Asia
  
• 316 General statistics of Africa
  
• 317 General statistics of North America
  
• 318 General statistics of South America
  
• 319 General statistics of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica
  

320 Political science

• 320 Political science (Politics & government)
  
• 321 Systems of governments & states
  
• 322 Relation of state to organized groups & their members
  
• 323 Civil & political rights
  
• 324 The political process
  
• 325 International migration & colonization
  
• 326 Slavery & emancipation
  
• 327 International relations
  
• 328 The legislative process
  
• 329 Not assigned or no longer used
  

330 Economics

• 330 Economics
  
• 331 Labor economics
  
• 332 Financial economics
  
• 333 Economics of land & energy
  
• 334 Cooperatives
  
• 335 Socialism & related systems
  
• 336 Public finance
  
• 337 International economics
  
• 338 Production
  
• 339 Macroeconomics & related topics
  

340 Law

• 340 Law
  
• 341 Law of nations
  
• 342 Constitutional & administrative law
  
• 343 Military, defense, public property, public finance, tax, commerce (trade), industrial law
  
• 344 Labor, social service, education, cultural law
  
• 345 Criminal law
  
• 346 Private law
  
• 347 Procedure & courts
  
• 348 Laws, regulations, cases
  
• 349 Law of specific jurisdictions, areas, socioeconomic regions, regional intergovernmental organizations
  

350 Public administration & military science

• 350 Public administration & military science
  
• 351 Public administration
  
• 352 General considerations of public administration
  
• 353 Specific fields of public administration
  
• 354 Public administration of economy & environment
  
• 355 Military science
  
• 356 Foot forces & warfare
  
• 357 Mounted forces & warfare
  
• 358 Air & other specialized forces & warfare; engineering & related services
  
• 359 Sea forces & warfare
  

360 Social problems & social services

• 360 Social problems & services; associations
  
• 361 Social problems & services
  
• 362 Social problems of & services to groups of people
  
• 363 Other social problems & services
  
• 364 Criminology
  
• 365 Penal & related institutions
  
• 366 Secret associations & societies
  
• 367 General clubs
  
• 368 Insurance
  
• 369 Associations
  

370 Education

• 370 Education
  
• 371 Schools & their activities; special education
  
• 372 Primary education (elementary education)
  
• 373 Secondary education
  
• 374 Adult education
  
• 375 Curricula
  
• 376 No longer used—formerly Education of women
  
• 377 No longer used—formerly Ethical education
  
• 378 Higher education (Tertiary education)
  
• 379 Public policy issues in education
  

380 Commerce, communications, & transportation

• 380 Commerce, communications, transportation
  
• 381 Commerce (Trade)
  
• 382 International commerce (Foreign trade)
  
• 383 Postal communication
  
• 384 Communications
  
• 385 Railroad transportation
  
• 386 Inland waterway & ferry transportation
  
• 387 Water, air, space transportation
  
• 388 Transportation
  
• 389 Metrology & standardization
  

390 Customs, etiquette, & folklore

• 390 Customs, etiquette, folklore
  
• 391 Costume & personal appearance
  
• 392 Customs of life cycle & domestic life
  
• 393 Death customs
  
• 394 General customs
  
• 395 Etiquette (Manners)
  
• 396 No longer used—formerly Women's position and treatment
  
• 397 No longer used—formerly outcast studies
  
• 398 Folklore
  
• 399 Customs of war & diplomacy

Class 400 – Language

400 Language

• 400 Language
  
• 401 Philosophy & theory; international languages
  
• 402 Miscellany
  
• 403 Dictionaries, encyclopedias, concordances
  
• 404 Special topics of language
  
• 405 Serial publications
  
• 406 Organizations & management
  
• 407 Education, research, related topics
  
• 408 Groups of people
  
• 409 Geographic treatment & biography
  

410 Linguistics

• 410 Linguistics
  
• 411 Writing systems of standard forms of languages
  
• 412 Etymology of standard forms of languages
  
• 413 Dictionaries of standard forms of languages
  
• 414 Phonology & phonetics of standard forms of languages
  
• 415 Grammar of standard forms of languages
  
• 416 No longer used—formerly Prosody
  
• 417 Dialectology & historical linguistics
  
• 418 Standard usage (Prescriptive linguistics)
  
• 419 Sign languages
  

420 English & Old English languages

• 420 English & Old English (Anglo-Saxon)
  
• 421 Writing system, phonology, phonetics of standard English
  
• 422 Etymology of standard English
  
• 423 Dictionaries of standard English
  
• 424 No longer used—formerly English thesauruses
  
• 425 Grammar of standard English
  
• 426 No longer used—formerly English prosodies
  
• 427 Historical & geographical variations, modern nongeographic variations of English
  
• 428 Standard English usage (Prescriptive linguistics)
  
• 429 Old English (Anglo-Saxon)
  

430 German & related languages

• 430 German and related languages
  
• 431 Writing systems, phonology, phonetics of standard German
  
• 432 Etymology of standard German
  
• 433 Dictionaries of standard German
  
• 434 Not assigned or no longer used
  
• 435 Grammar of standard German
  
• 436 Not assigned or no longer used
  
• 437 Historical & geographic variations, modern nongeographic variations of German
  
• 438 Standard German usage (Prescriptive linguistics)
  
• 439 Other Germanic languages
  

440 French & related languages

• 440 French & related Romance languages
  
• 441 Writing systems, phonology, phonetics of standard French
  
• 442 Etymology of standard French
  
• 443 Dictionaries of standard French
  
• 444 Not assigned or no longer used
  
• 445 Grammar of standard French
  
• 446 Not assigned or no longer used
  
• 447 Historical and geographic variations, modern nongeographic variations of French
  
• 448 Standard French usage (Prescriptive linguistics)
  
• 449 Occitan Catalan, Franco-Provençal
  

450 Italian, Romanian, & related languages

• 450 Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican
  
• 451 Writing systems, phonology, phonetics of standard Italian
  
• 452 Etymology of standard Italian
  
• 453 Dictionaries of standard Italian
  
• 454 Not assigned or no longer used
  
• 455 Grammar of standard Italian
  
• 456 Not assigned or no longer used
  
• 457 Historical & geographic variations, modern nongeographic variations of Italian
  
• 458 Standard Italian usage (Prescriptive linguistics)
  
• 459 Romanian, Rhaetian, Sardinian, Corsican
  

460 Spanish, Portuguese, Galician

• 460 Spanish, Portuguese, Galician
  
• 461 Writing systems, phonology, phonetics of standard Spanish
  
• 462 Etymology of standard Spanish
  
• 463 Dictionaries of standard Spanish
  
• 464 Not assigned or no longer used
  
• 465 Grammar of standard Spanish
  
• 466 Not assigned or no longer used
  
• 467 Historical & geographic variations, modern nongeographic variations of Spanish
  
• 468 Standard Spanish usage (Prescriptive linguistics)
  
• 469 Portuguese
  

470 Latin & Italic languages

• 470 Latin & related Italic languages
  
• 471 Writing systems, phonology, phonetics of classical Latin
  
• 472 Etymology of classical Latin
  
• 473 Dictionaries of classical Latin
  
• 474 Not assigned or no longer used
  
• 475 Grammar of classical Latin
  
• 476 Not assigned or no longer used
  
• 477 Old, postclassical, Vulgar Latin
  
• 478 Classical Latin usage (Prescriptive linguistics)
  
• 479 Other Italic languages
  

480 Classical & modern Greek languages

• 480 Classical Greek & related Hellenic languages
  
• 481 Writing systems, phonology, phonetics of classical Greek
  
• 482 Etymology of classical Greek
  
• 483 Dictionaries of classical Greek
  
• 484 Not assigned or no longer used
  
• 485 Grammar of classical Greek
  
• 486 Not assigned or no longer used
  
• 487 Preclassical & postclassical Greek
  
• 488 Classical Greek usage (Prescriptive linguistics)
  
• 489 Other Hellenic languages
  

490 Other languages

• 490 Other languages
  
• 491 East Indo-European & Celtic languages
  
• 492 Afro-Asiatic languages
  
• 493 Non-Semitic Afro-Asiatic languages
  
• 494 Altic, Uralic, Hyperborean, Dravidian languages, miscellaneous languages of south Asia
  
• 495 Languages of East & Southeast Asia
  
• 496 African languages
  
• 497 North American native languages
  
• 498 South American native languages
  
• 499 Non-Austronesian languages of Oceania, Austronesian languages, miscellaneous languages

Class 500 – Science

500 Science

• 500 Natural sciences & mathematics
  
• 501 Philosophy & theory
  
• 502 Miscellany
  
• 503 Dictionaries, encyclopedias, concordances
  
• 504 Not assigned or no longer used
  
• 505 Serial publications
  
• 506 Organizations & management
  
• 507 Education, research, related topics
  
• 508 Natural history
  
• 509 History, geographic treatment, biography
  

510 Mathematics

• 510 Mathematics
  
• 511 General principles of mathematics
  
• 512 Algebra
  
• 513 Arithmetic
  
• 514 Topology
  
• 515 Analysis
  
• 516 Geometry
  
• 517 Not assigned or no longer used
  
• 518 Numerical analysis
  
• 519 Probabilities & applied mathematics
  

520 Astronomy

• 520 Astronomy & allied sciences
  
• 521 Celestial mechanics
  
• 522 Techniques, procedures, apparatus, equipment, materials
  
• 523 Specific celestial bodies & phenomena
  
• 524 Not assigned or no longer used
  
• 525 Earth (Astronomical geography)
  
• 526 Mathematical geography
  
• 527 Celestial navigation
  
• 528 Ephemerides
  
• 529 Chronology
  

530 Physics

• 530 Physics
  
• 531 Classical mechanics
  
• 532 Fluid mechanics
  
• 533 Pneumatics (Gas mechanics)
  
• 534 Sound & related vibrations
  
• 535 Light & related radiation
  
• 536 Heat
  
• 537 Electricity & electronics
  
• 538 Magnetism
  
• 539 Modern physics
  

540 Chemistry

• 540 Chemistry & allied sciences
  
• 541 Physical chemistry
  
• 542 Techniques, procedures, apparatus, equipment, materials
  
• 543 Analytical chemistry
  
• 544 No longer used—formerly Qualitative analysis
  
• 545 No longer used—formerly Quantitative analysis
  
• 546 Inorganic chemistry
  
• 547 Organic chemistry
  
• 548 Crystallography
  
• 549 Mineralogy
  

550 Earth sciences & geology

• 550 Earth sciences
  
• 551 Geology, hydrology, meteorology
  
• 552 Petrology
  
• 553 Economic geology
  
• 554 Earth sciences of Europe
  
• 555 Earth sciences of Asia
  
• 556 Earth sciences of Africa
  
• 557 Earth sciences of North America
  
• 558 Earth sciences of South America
  
• 559 Earth sciences of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds
  

560 Fossils & prehistoric life

• 560 Paleontology
  
• 561 Paleobotany; fossil microorganisms
  
• 562 Fossil invertebrates
  
• 563 Miscellaneous fossil marine & seashore invertebrates
  
• 564 Fossil Mollusca & Molluscoidea
  
• 565 Fossil Arthropoda
  
• 566 Fossil Chordata
  
• 567 Fossil cold-blooded vertebrates
  
• 568 Fossil Aves (birds)
  
• 569 Fossil Mammalia
  

570 Biology

• 570 Biology
  
• 571 Physiology & related subjects
  
• 572 Biochemistry
  
• 573 Specific physiological systems in animals, regional histology & physiology in animals
  
• 574 Not assigned or no longer used
  
• 575 Specific parts of & physiological systems in plants
  
• 576 Genetics and evolution
  
• 577 Ecology
  
• 578 Natural history of organisms & related subjects
  
• 579 Natural history of microorganisms, fungi, algae
  

580 Plants

• 580 Plants
  
• 581 Specific topics in natural history of plants
  
• 582 Plants noted for specific vegetative characteristics and flowers
  
• 583 Magnoliopsida (Dicotyledones)
  
• 584 Liliopsida (Monocotyledones)
  
• 585 Pinophyta (Gymnosperms)
  
• 586 Cryptogamia (Seedless plants)
  
• 587 Pteridophyta
  
• 588 Bryophyta
  
• 589 No longer used—formerly Forestry
  

590 Animals (Zoology)

• 590 Animals
  
• 591 Specific topics in natural history of animals
  
• 592 Invertebrates
  
• 593 Miscellaneous marine & seashore invertebrates
  
• 594 Mollusca & Molluscoidea
  
• 595 Arthropoda
  
• 596 Chordata
  
• 597 Cold-blooded vertebrates
  
• 598 Aves (Birds)
  
• 599 Mammalia (Mammals)

Class 600 – Technology

600 Technology

• 600 Technology (Applied sciences)
  
• 601 Philosophy & theory
  
• 602 Miscellany
  
• 603 Dictionaries, encyclopedias, concordances
  
• 604 Technical drawing, hazardous materials technology; groups of people
  
• 605 Serial publications
  
• 606 Organizations
  
• 607 Education, research, related topics
  
• 608 Patents
  
• 609 History, geographic treatment, biography
  

610 Medicine & health

• 610 Medicine & health
  
• 610.3 Medical encyclopedias
  
• 610.6 Medical organizations & professions
  
• 610.72 Medical research
  
• 610.9 Geography and history of medicine
  
• 611 Human anatomy, cytology, histology
  
• 611.2 Respiratory (lung, respiratory system)
  
• 611.3 Gastrointestinal (dental anatomy)
  
• 611.6 Genitourinary (genital system)
  
• 611.7 Musculoskeletal (seed coat)
  
• 611.8 Anatomy of the sense organs and nervous system
  
• 611.82 Anatomy of the brain
  
• 611.9 Topographic anatomy (back)
  
• 612 Human physiology
  
• 613 Personal health & safety
  
• 613.023 Professions hygiene and health
  
• 613.1 Role of the natural environment
  
• 613.2 Diet (food hygiene, nutrition, diet, nutritional value of food and beverages)
  
• 613.4 Cleanliness Care (hygiene and personal cleanliness, personal care)
  
• 613.5 Role of unnatural environment (housing, housing, temperature)
  
• 613.6
  
• 613.62 Hygiene in the business (industrial hygiene)
  
• 613.66 Self Defense
  
• 613.7 Condition physique (bodybuilding, fitness, forme physique)[4]
  
• 613.7046 Hatha yoga, yoga physique[5]
  
• 613.71 Exercising, sports (aerobics, sauna, appearance surveillance and physical form)[6]
  
• 613.79 Relaxation, sleep[7]
  
• 614 Forensic medicine; incidence of injuries, wounds, disease; public preventive medicine
  
• 615 Pharmacology and therapeutics
  
• 616 Diseases
  
• 617 Surgery, regional medicine, dentistry, ophthalmology, otology, audiology
  
• 618 Gynecology, obstetrics, pediatrics, geriatrics
  
• 619 No longer used—formerly Experimental medicine
  

620 Engineering

• 620 Engineering & Applied operations
  
• 621 Applied physics
  
• 622 Mining & related operations
  
• 623 Military & nautical engineering
  
• 624 Civil engineering
  
• 625 Engineering of railroads, roads
  
• 626 Not assigned or no longer used
  
• 627 Hydraulic engineering
  
• 628 Sanitary engineering
  
• 629 Other branches of engineering
  

630 Agriculture

• 630 Agriculture & related technologies
  
• 631 Specific techniques; apparatus, equipment, materials
  
• 632 Plant injuries, diseases, pests
  
• 633 Field & plantation crops
  
• 634 Orchards, fruits, forestry
  
• 635 Garden crops (Horticulture)
  
• 636 Animal husbandry
  
• 637 Processing dairy & related products
  
• 638 Insect culture
  
• 639 Hunting, fishing, conservation, related technologies
  

640 Home & family management

• 640 Home & family management
  
• 641 Food & drink
  
• 642 Meals & table service
  
• 643 Housing & household equipment
  
• 644 Household utilities
  
• 645 Household furnishings
  
• 646 Sewing, clothing, management of personal and family life
  
• 647 Management of public households (Institutional housekeeping)
  
• 648 Housekeeping
  
• 649 Child rearing; home care of people with disabilities & illnesses
  

650 Management & public relations

• 650 Management & auxiliary services
  
• 651 Office services
  
• 652 Processes of written communication
  
• 653 Shorthand
  
• 654–656 Not assigned or no longer used
  
• 657 Accounting
  
• 658 General management
  
• 659 Advertising & public relations
  

660 Chemical engineering

• 660 Chemical engineering & related technologies
  
• 661 Technology of industrial chemicals
  
• 662 Technology of explosives, fuels, related products
  
• 663 Beverage technology
  
• 664 Food technology
  
• 665 Technology of industrial oils, fats, waxes, gases
  
• 666 Ceramic & allied technologies
  
• 667 Cleaning, color, coating, related technologies
  
• 668 Technology of other organic products
  
• 669 Metallurgy
  

670 Manufacturing

• 670 Manufacturing
  
• 671 Metalworking processes & primary metal products
  
• 672 Iron, steel, other iron alloys
  
• 673 Nonferrous metals
  
• 674 Lumber processing, wood products, cork
  
• 675 Leather & fur processing
  
• 676 Pulp & paper technology
  
• 677 Textiles
  
• 678 Elastomers & elastomer products
  
• 679 Other products of specific kinds of materials
  

680 Manufacture for specific uses

• 680 Manufacture of products for specific uses
  
• 681 Precision instruments[disambiguation needed] & other devices
  
• 682 Small forge work (Blacksmithing)
  
• 683 Hardware & household appliances
  
• 684 Furnishings & home workshops
  
• 685 Leather & fur goods, & related products
  
• 686 Printing & related activities
  
• 687 Clothing & accessories
  
• 688 Other final products, & packaging technology
  
• 689 Not assigned or no longer used
  

690 Construction of buildings

• 690 Construction of buildings
  
• 691 Building materials
  
• 692 Auxiliary construction practices
  
• 693 Construction in specific types of materials & for specific purposes
  
• 694 Wood construction
  
• 695 Roof covering
  
• 696 Utilities
  
• 697 Heating, ventilating, air-conditioning engineering
  
• 698 Detail finishing
  
• 699 Not assigned or no longer used

Class 700 – Arts & recreation

700 Arts

• 700 The Arts
  
• 701 Philosophy & theory of fine & decorative arts
  
• 702 Miscellany of fine & decorative arts
  
• 703 Dictionaries, encyclopedias, concordances of fine & decorative arts
  
• 704 Special topics in fine & decorative arts
  
• 705 Serial publications of fine & decorative arts
  
• 706 Organizations & management of fine & decorative arts
  
• 707 Education, research, related topics of fine & decorative arts
  
• 708 Galleries, museums, private collections of fine & decorative arts
  
• 709 History, geographic treatment, biography
  

710 Area planning & landscape architecture

• 710 Area planning & landscape architecture
  
• 711 Area planning (Civic art)
  
• 712 Landscape architecture (Landscape design)
  
• 713 Landscape architecture of trafficways
  
• 714 Water features in landscape architecture
  
• 715 Woody plants in landscape architecture
  
• 716 Herbaceous plants in landscape architecture
  
• 717 Structures in landscape architecture
  
• 718 Landscape design of cemeteries
  
• 719 Natural landscapes
  

720 Architecture

• 720 Architecture
  
• 721 Architectural materials & structural elements
  
• 722 Architecture from earliest times to ca. 300
  
• 723 Architecture from ca. 300 to 1399
  
• 724 Architecture from 1400
  
• 725 Public structures
  
• 726 Buildings for religious & related purposes
  
• 727 Buildings for educational & research purposes
  
• 728 Residential & related buildings
  
• 729 Design & decoration of structures & accessories
  

730 Sculpture, ceramics, & metalwork

• 730 Sculpture & related arts
  
• 731 Processes, forms, subjects of sculpture
  
• 732 Sculpture from earliest times to ca. 500, sculpture of non-literate peoples
  
• 733 Greek, Etruscan, Roman sculpture
  
• 734 Sculpture from ca. 500 to 1399
  
• 735 Sculpture from 1400
  
• 736 Carving & carvings
  
• 737 Numismatics & sigillography
  
• 738 Ceramic arts
  
• 739 Art metalwork
  

740 Graphic arts & decorative arts

• 740 Graphic arts
  
• 741 Drawing & drawings
  
• 742 Perspective in drawing
  
• 743 Drawing & drawings by subject
  
• 744 Not assigned or no longer used
  
• 745 Decorative arts
  
• 746 Textile arts
  
• 747 Interior decoration
  
• 748 Glass
  
• 749 Furniture & accessories
  

750 Painting

• 750 Painting & paintings
  
• 751 Techniques, procedures, apparatus, equipment, materials, forms
  
• 752 Color
  
• 753 Symbolism, allegory, mythology, legend
  
• 754 Genre paintings
  
• 755 Religion
  
• 756 Not assigned or no longer used
  
• 757 Human figures
  
• 758 Nature, architectural subjects & cityscapes, other specific subjects
  
• 759 History, geographic treatment, biography
  

760 Printmaking & prints

• 760 Printmaking & prints
  
• 761 Relief processes (Block printing)
  
• 762 Not assigned or no longer used
  
• 763 Lithographic processes (Planographic processes)
  
• 764 Chromolithography & serigraphy
  
• 765 Metal engraving
  
• 766 Mezzotinting, aquatinting, & related processes
  
• 767 Etching & drypoint
  
• 768 Not assigned or no longer used
  
• 769 Prints
  

770 Photography, computer art, film, video

• 770 Photography, computer art, cinematography, videography
  
• 771 Techniques, procedures, apparatus, equipment, materials
  
• 772 Metallic salt processes
  
• 773 Pigment processes of printing
  
• 774 No longer used—formerly Holography
  
• 775 No longer used—formerly Digital photography
  
• 776 Computer art (Digital art)
  
• 777 Cinematography & Videography
  
• 778 Specific fields & special kinds of photography
  
• 779 Photographic images
  

780 Music

• 780 Music
  
• 781 General principles & musical forms
  
• 782 Vocal music
  
• 783 Music for single voices
  
• 784 Instruments & Instrumental ensembles & their music
  
• 785 Ensembles with only one instrument per part
  
• 786 Keyboard, mechanical, electrophonic, percussion instruments
  
• 787 Stringed instruments (Chordophones)
  
• 788 Wind instruments (Aerophones)
  
• 789 Unassigned or no longer used
  

790 Outline of sports, games & entertainment

• 790 Recreational & performing arts
  
• 791 Public performances
  
• 792 Stage presentations
  
• 793 Indoor games & amusements
  
• 794 Indoor games of skill
  
• 795 Games of chance
  
• 796 Athletic & outdoor sports & games
  
• 797 Aquatic & air sports
  
• 798 Equestrian sports & animal racing
  
• 799 Fishing, hunting, shooting

Class 800 – Literature

800 Literature, rhetoric & criticism

• 800 Literature (Belles-lettres) & rhetoric
  
• 801 Philosophy & theory
  
• 802 Miscellany
  
• 803 Dictionaries, encyclopedias, concordances
  
• 804 Not assigned or no longer used
  
• 805 Serial publications
  
• 806 Organizations & management
  
• 807 Education, research, related topics
  
• 808 Rhetoric & collections of literary texts from more than two literatures
  
• 809 History, description, critical appraisal of more than two literatures
  

810 American literature in English

• 810 American literature in English
  
• 811 American poetry in English
  
• 812 American drama in English
  
• 813 American fiction in English
  
• 814 American essays in English
  
• 815 American speeches in English
  
• 816 American letters in English
  
• 817 American humor & satire in English
  
• 818 American miscellaneous writings in English
  
• 819 No longer used—formerly Puzzle activities
  

820 English & Old English literatures

• 820 English & Old English (Anglo-Saxon) literatures
  
• 821 English Poetry
  
• 822 English drama
  
• 822.33 William Shakespeare
  
• 823 English fiction
  
• 824 English essays
  
• 825 English speeches
  
• 826 English letters
  
• 827 English humor & satire
  
• 828 English miscellaneous writings
  
• 829 Old English (Anglo-Saxon) literature
  

830 German & related literatures

• 830 German literature & literatures of related languages
  
• 831 German poetry
  
• 832 German drama
  
• 833 German fiction
  
• 834 German essays
  
• 835 German speeches
  
• 836 German letters
  
• 837 German humor & satire
  
• 838 German miscellaneous writings
  
• 839 Other Germanic literatures
  

840 French & related literatures

• 840 French literature & literatures of related Romance languages
  
• 841 French poetry
  
• 842 French drama
  
• 843 French fiction
  
• 844 French essays
  
• 845 French speeches
  
• 846 French letters
  
• 847 French humor & satire
  
• 848 French miscellaneous writings
  
• 849 Occitan, Catalan, Franco-Provençal literatures
  

850 Italian, Romanian, & related literatures

• 850 Literatures of Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican languages
  
• 851 Italian poetry
  
• 852 Italian drama
  
• 853 Italian fiction
  
• 854 Italian essays
  
• 855 Italian speeches
  
• 856 Italian letters
  
• 857 Italian humor & satire
  
• 858 Italian miscellaneous writings
  
• 859 Literatures of Romanian, Rhaetian, Sardinian, Corsican languages
  

860 Spanish, Portuguese, Galician literatures

• 860 Literatures of Spanish, Portuguese, Galician languages
  
• 861 Spanish poetry
  
• 862 Spanish drama
  
• 863 Spanish fiction
  
• 864 Spanish essays
  
• 865 Spanish speeches
  
• 866 Spanish letters
  
• 867 Spanish humor & satire
  
• 868 Spanish miscellaneous writings
  
• 869 Literatures of Portuguese & Galician languages
  

870 Latin & Italic literatures

• 870 Latin literature & literatures of related Italic languages
  
• 871 Latin poetry
  
• 872 Latin dramatic poetry & drama
  
• 873 Latin epic poetry & fiction
  
• 874 Latin lyric poetry
  
• 875 Latin speeches
  
• 876 Latin letters
  
• 877 Latin humor & satire
  
• 878 Latin miscellaneous writings
  
• 879 Literatures of other Italic languages
  

880 Classical & modern Greek literatures

• 880 Classical Greek literature & literatures of related Hellenic languages
  
• 881 Classical Greek poetry
  
• 882 Classical Greek drama
  
• 883 Classical Greek epic poetry & fiction
  
• 884 Classical Greek lyric poetry
  
• 885 Classical Greek speeches
  
• 886 Classical Greek letters
  
• 887 Classical Greek humor & satire
  
• 888 Classical Greek miscellaneous writings
  
• 889 Modern Greek literature
  

890 Other literatures

• 890 Literatures of other specific languages and language families
  
• 891 East Indo-European & Celtic literatures
  
• 892 Afro-Asiatic literatures
  
• 893 Non-Semitic Afro-Asiatic literatures
  
• 894 Literatures of Altaic, Uralic, Hyperborean, Dravidian languages; literatures of miscellaneous languages of South Asia
  
• 895 Literatures of East & Southeast Asia
  
• 896 African literatures
  
• 897 Literatures of North American native languages
  
• 898 Literatures of South American native languages
  
• 899 Literatures of non-Austronesian languages of Oceania, of Austronesian languages, of miscellaneous languages

Class 900 – History & geography

900 History

• 900 History, geography, & auxiliary disciplines
  
• 901 Philosophy & theory of history
  
• 902 Miscellany of history
  
• 903 Dictionaries, encyclopedias, concordances of history
  
• 904 Collected accounts of events
  
• 905 Serial publications of history
  
• 906 Organizations & management of history
  
• 907 Education, research, related topics of history
  
• 908 History with respect to groups of people
  
• 909 World history
  

910 Geography & travel

• 910 Geography & travel
  
• 911 Historical geography
  
• 912 Graphic representations of surface of earth and of extraterrestrial worlds
  
• 913 Geography of & travel in ancient world
  
• 914 Geography of & travel in Europe
  
• 915 Geography of & travel in Asia
  
• 916 Geography of & travel in Africa
  
• 917 Geography of & travel in North America
  
• 918 Geography of & travel in South America
  
• 919 Geography of & travel in Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, & on extraterrestrial worlds
  

920 Biography & genealogy

• 920 Biography, genealogy, insignia
  
• 921–928 This range is reserved as an optional location for biographies, which are shelved alphabetically by subject's last name.
  
• 929 Genealogy, names, insignia
  

930 History of ancient world (to ca. 499)

• 930 History of ancient world to ca. 499
  
• 931 China to 420
  
• 932 Egypt to 640
  
• 933 Palestine to 70
  
• 934 South Asia to 647
  
• 935 Mesopotamia to 637 & Iranian Plateau to 637
  
• 936 Europe north & west of Italian Peninsula to ca. 499
  
• 937 Italian Peninsula to 476 & adjacent territories to 476
  
• 938 Greece to 323
  
• 939 Other parts of ancient world
  

940 History of Europe

• 940 History of Europe
  
• 941 British Isles
  
• 942 England & Wales
  
• 943 Germany & neighboring central European countries
  
• 944 France & Monaco
  
• 945 Italy, San Marino, Vatican City, Malta
  
• 946 Spain, Andorra, Gibraltar, Portugal
  
• 947 Russia & neighboring east European countries
  
• 948 Scandinavia
  
• 949 Other parts of Europe
  

950 History of Asia

• 950 History of Asia
  
• 951 China & adjacent areas
  
• 952 Japan
  
• 953 Arabian Peninsula & adjacent areas
  
• 954 India & neighboring south Asian countries;
  
• 955 Iran
  
• 956 Middle East (Near East)
  
• 957 Siberia (Asiatic Russia)
  
• 958 Central Asia
  
• 959 Southeast Asia
  

960 History of Africa

• 960 History of Africa
  
• 961 Tunisia & Libya
  
• 962 Egypt, Sudan, South Sudan
  
• 963 Ethiopia & Eritrea
  
• 964 Morocco, Ceuta, Melilla Western Sahara, Canary Islands
  
• 965 Algeria
  
• 966 West Africa & offshore islands
  
• 967 Central Africa & offshore islands
  
• 968 Republic of South Africa & neighboring southern African countries
  
• 969 South Indian Ocean islands
  

970 History of North America

• 970 History of North America
  
• 971 Canada
  
• 972 Mexico, Central America, West Indies, Bermuda
  
• 973 United States
  
• 974 Northeastern United States (New England & Middle Atlantic states)
  
• 975 Southeastern United States (South Atlantic states)
  
• 976 South central United States
  
• 977 North central United States
  
• 978 Western United States
  
• 979 Great Basin & Pacific Slope region of United States
  

980 History of South America

• 980 History of South America
  
• 981 Brazil
  
• 982 Argentina
  
• 983 Chile
  
• 984 Bolivia
  
• 985 Peru
  
• 986 Colombia & Ecuador
  
• 987 Venezuela
  
• 988 Guiana
  
• 989 Paraguay & Uruguay
  

990 History of other areas

• 990 History of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds
  
• 991–992 Not assigned or no longer used
  
• 993 New Zealand
  
• 994 Australia
  
• 995 New Guinea & neighboring countries of Melanesia
  
• 996 Polynesia & other Pacific Ocean islands
  
• 997 Atlantic Ocean islands
  
• 998 Arctic islands & Antarctica
  
• 999 Extraterrestrial worlds

Source: https://en.wikipedia.org/wiki/List_of_Dewey_Decimal_classes