Library of Congress Classifications List

See also: the list of Dewey Decimal Classifications

Top-level classes:

• Class A – General Works
  
• Class B – Philosophy. Psychology. Religion
  
• Class C – Auxiliary Sciences of History
  
• Class D – World History and History of Europe, Asia, Africa, Australia, New Zealand, etc.
  
• Class E – History of America
  
• Class F – Local History of the Americas
  
• Class G – Geography, Anthropology, Recreation
  
• Class H – Social Sciences
  
• Class J – Political Science
  
• Class K – Law
  
• Class L – Education
  
• Class M – Music
  
• Class N – Fine Arts
  
• Class P – Language and Literature
  
• Class Q – Science
  
• Class R – Medicine
  
• Class S – Agriculture
  
• Class T – Technology
  
• Class U – Military Science
  
• Class V – Naval Science
  
• Class Z – Bibliography, Library Science

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Class A – General Works

• AC – Collections. Series. Collected works
  
• AE – Encyclopedias
  
• AG – Dictionaries and other general reference works
  
• AI – Indexes
  
• AM – Museums. Collectors and collecting
  
• AN – Newspapers
  
• AP – Periodicals
  
• AS – Academies and learned societies
  
• AY – Yearbooks. Almanacs. Directories
  
• AZ – History of scholarship and learning. The humanities

Class B – Philosophy. Psychology. Religion

• B – Philosophy (General)
  
• BC – Logic
  
• BD – Speculative philosophy
  
• BF – Psychology
  
• BH – Aesthetics
  
• BJ – Ethics
  
• BL – Religions. Mythology. Rationalism
  
• BM – Judaism
  
• BP – Islam. Bahaism. Theosophy, etc.
  
• BQ – Buddhism
  
• BR – Christianity
  
• BS – The Bible
  
• BT – Doctrinal theology
  
• BV – Practical Theology
  
• BX – Christian Denominations

Class C – Auxiliary Sciences of History

• C – Auxiliary Sciences of History
  
• CB – History of Civilization
  
• CC – Archaeology
  
• CD – Diplomatics. Archives. Seals
  
• CE – Technical Chronology. Calendar
  
• CJ – Numismatics
  
• CN – Inscriptions. Epigraphy
  
• CR – Heraldry
  
• CS – Genealogy
  
• CT – Biography

Class D – World History and History of Europe, Asia, Africa, Australia, New Zealand, etc.

• D – History (General)
  
• DA – Great Britain
  
• DAW – Central Europe
  
• DB – Austria – Liechtenstein – Hungary – Czechoslovakia
  
• DC – France – Andorra – Monaco
  
• DD – Germany
  
• DE – Greco-Roman World
  
• DF – Greece
  
• DG – Italy – Malta
  
• DH – Low Countries – Benelux Countries
  
• DJ – Netherlands (Holland)
  
• DJK – Eastern Europe (General)
  
• DK – Russia. Soviet Union. Former Soviet Republics – Poland
  
• DL – Northern Europe. Scandinavia
  
• DP – Spain – Portugal
  
• DQ – Switzerland
  
• DR – Balkan Peninsula
  
• DS – Asia
  
• DT – Africa
  
• DU – Oceania (South Seas)
  
• DX – Romanies

Class E – History of America

Class E does not have any subclasses.

Class F – Local History of the Americas

Class F does not have any subclasses, however Canadian Universities and the Canadian National Library use FC for Canadian History, a subclass that the LC has not officially adopted, but which it has agreed not to use for anything else

Class G – Geography, Anthropology, Recreation

• G – Geography (General). Atlases. Maps
  
• GA – Mathematical geography. Cartography
  
• GB – Physical geography
  
• GC – Oceanography
  
• GE – Environmental Sciences
  
• GF – Human ecology. Anthropogeography
  
• GN – Anthropology
  
• GR – Folklore
  
• GT – Manners and customs (General)
  
• GV – Recreation. Leisure

Class H – Social Sciences

• H – Social sciences (General)
  
• HA – Statistics
  
• HB – Economic theory. Demography
  
• HC – Economic history and conditions
  
• HD – Industries. Land use. Labor
  
• HE – Transportation and communications
  
• HF – Commerce
  
• HG – Finance
  
• HJ – Public finance
  
• HM – Sociology (General)
  
• HN – Social history and conditions. Social problems. Social reform
  
• HQ – The family. Marriage, Women and Sexuality
  
• HS – Societies: secret, benevolent, etc.
  
• HT – Communities. Classes. Races
  
• HV – Social pathology. Social and public welfare. Criminology
  
• HX – Socialism. Communism. Anarchism

Class J – Political Science

• J – General legislative and executive papers
  
• JA – Political science (General)
  
• JC – Political theory
  
• JF – Political institutions and public administration
  
• JJ – Political institutions and public administration (North America)
  
• JK – Political institutions and public administration (United States)
  
• JL – Political institutions and public administration (Canada, Latin America, etc.)
  
• JN – Political institutions and public administration (Europe)
  
• JQ – Political institutions and public administration (Asia, Africa, Australia, Pacific Area, etc.)
  
• JS – Local government. Municipal government
  
• JV – Colonies and colonization. Emigration and immigration. International migration
  
• JX – International law, see JZ and KZ (obsolete)
  
• JZ – International relations

Class K – Law

• K – Law in general. Comparative and uniform law. Jurisprudence
  
• KB – Religious law in general. Comparative religious law. Jurisprudence
  
• KBM – Jewish law
  
• KBP – Islamic law
  
• KBR – History of canon law
  
• KBS – Canon law of Eastern churches
  
• KBT – Canon law of Eastern Rite Churches in Communion with the Holy See of Rome
  
• KBU – Law of the Roman Catholic Church. The Holy See
  
• KD/KDK - United Kingdom and Ireland
  
• KDZ – America. North America
  
• KE – Canada
  
• KF – United States
  
• KG – Latin America – Mexico and Central America – West Indies. Caribbean area
  
• KH – South America
  
• KJ-KKZ – Europe
  
• KL-KWX – Asia and Eurasia, Africa, Pacific Area, and Antarctica
  
• KU/KUQ – Law of Australia and New Zealand
  
• KZ – Law of nations

Class L – Education

• L – Education (General)
  
• LA – History of education
  
• LB – Theory and practice of education
  
• LC – Special aspects of education
  
• LD – Individual institutions – United States
  
• LE – Individual institutions – America (except United States)
  
• LF – Individual institutions – Europe
  
• LG – Individual institutions – Asia, Africa, Indian Ocean islands, Australia, New Zealand, Pacific islands
  
• LH – College and school magazines and papers
  
• LJ – Student fraternities and societies, United States
  
• LT – Textbooks

Class M – Music

• M – Music
  
• ML – Literature on music
  
• MT – Instruction and study

Class N – Fine Arts

• N – Visual arts
  
• NA – Architecture
  
• NB – Sculpture
  
• NC – Drawing. Design. Illustration
  
• ND – Painting
  
• NE – Print media
  
• NK – Decorative arts
  
• NX – Arts in general

Class P – Language and Literature

The PN-subclass shelf.

• P – Philology. Linguistics
  
• PA – Greek language and literature. Latin language and literature
  
• PB – Modern languages. Celtic languages and literature
  
• PC – Romanic languages
  
• PD – Germanic languages. Scandinavian languages
  
• PE – English language
  
• PF – West Germanic languages
  
• PG – Slavic languages and literatures. Baltic languages. Albanian language
  
• PH – Uralic languages. Basque language
  
• PJ – Oriental languages and literatures
  
• PK – Indo-Iranian languages and literatures
  
• PL – Languages and literatures of Eastern Asia, Africa, Oceania
  
• PM – Hyperborean, Native American, and artificial languages
  
• PN – Literature (General)
  
• PQ – French literature – Italian literature – Spanish literature – Portuguese literature
  
• PR – English literature
  
• PS – American literature
  
• PT – German literature – Dutch literature – Flemish literature since 1830 – Afrikaans literature -Scandinavian literature – Old Norse literature: Old Icelandic and Old Norwegian – Modern Icelandic literature – Faroese literature – Danish literature – Norwegian literature – Swedish literature
  
• PZ – Fiction and juvenile belles lettres

Class Q – Science

• Q – Science (General)
  
• QA – Mathematics
  
• QB – Astronomy
  
• QC – Physics
  
• QD – Chemistry
  
• QE – Geology
  
• QH – Natural history – Biology
  
• QK – Botany
  
• QL – Zoology
  
• QM – Human anatomy
  
• QP – Physiology
  
• QR – Microbiology

Class R – Medicine

• R – Medicine (General)
  
• RA – Public aspects of medicine
  
• RB – Pathology
  
• RC – Internal medicine
  
• RD – Surgery
  
• RE – Ophthalmology
  
• RF – Otorhinolaryngology
  
• RG – Gynecology and Obstetrics
  
• RJ – Pediatrics
  
• RK – Dentistry
  
• RL – Dermatology
  
• RM – Therapeutics. Pharmacology
  
• RS – Pharmacy and materia medica
  
• RT – Nursing
  
• RV – Botanic, Thomsonian, and Eclectic medicine
  
• RX – Homeopathy
  
• RZ – Other systems of medicine

Class S – Agriculture

• S – Agriculture (General)
  
• SB – Horticulture. Plant propagation. Plant breeding
  
• SD – Forestry. Arboriculture. Silviculture
  
• SF – Animal husbandry. Animal science
  
• SH – Aquaculture. Fisheries. Angling
  
• SK – Hunting

Class T – Technology

• T – Technology (General)
  
• TA – Engineering Civil engineering (General).
  
• TC – Hydraulic engineering. Ocean engineering
  
• TD – Environmental technology. Sanitary engineering
  
• TE – Highway engineering. Roads and pavements
  
• TF – Railroad engineering and operation
  
• TG – Bridges
  
• TH – Building construction
  
• TJ – Mechanical engineering and machinery
  
• TK – Electrical engineering. Electronics. Nuclear engineering
  
• TL – Motor vehicles. Aeronautics. Astronautics
  
• TN – Mining engineering. Metallurgy
  
• TP – Chemical technology
  
• TR – Photography
  
• TS – Manufacturing engineering. Mass production
  
• TT – Handicrafts. Arts and crafts
  
• TX – Home economics

Class U – Military Science

• U – Military science (General)
  
• UA – Armies: Organization, distribution, military situation
  
• UB – Military administration
  
• UC – Military maintenance and transportation
  
• UD – Infantry
  
• UE – Cavalry. Armor
  
• UF – Artillery
  
• UG – Military engineering. Air forces
  
• UH – Other military services

Class V – Naval Science

• V – Naval science (General)
  
• VA – Navies: Organization, distribution, naval situation
  
• VB – Naval administration
  
• VC – Naval maintenance
  
• VD – Naval seamen
  
• VE – Marines
  
• VF – Naval ordnance
  
• VG – Minor services of navies
  
• VK – Navigation. Merchant marine
  
• VM – Naval architecture. Shipbuilding. Marine engineering

Class Z – Bibliography, Library Science

• Z – Books (General). Writing. Paleography. Book industries and trade. Libraries. Bibliography
  
• ZA – Information resources/materials

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