"Here is a psychological self-help book--with a difference. Most other books of this kind are either book-length pep talks or book-length sermons: this book is neither. Instead, the author has done what, surprisingly, nobody has ever done before: he has assembled for the general reader today's scientific findings on thinking and problem-solving. Drawing from psychology, linguistics, anthropology, neurology, sociology, and half a dozen other fields of science, he has produced a fact-studded, thoroughly reliable modern 'guide for the perplexed.'

"Readers of Dr. Flesch's earlier best-sellers will expect a book that is utterly practical and highly readable at the same time. They will not be disappointed. THE ART OF CLEAR THINKING is packed with useful stuff, such as shortcuts for everyday mathematics, a speedy note-taking system, and a quick self-test of executive ability. Bus it is also written with zest and infectious enthusiasm, constantly delving into such fascinating matters as strange coincidences, romantic love, the difference between wit and humor, the strategy of Twenty Questions and the thinking processes of children. Indians, lightning calculators, inventors, Gallup pollsters, electronic machines, mystery writers, juries, housewives, chimpanzees, and executives.

"An appendix contains a reading list, Dr. Flesch's new formula for analyzing reading matter, and 16 pages documenting his painstaking research."