Dewey Decimal System
From Dead Media Archive
Contents
Utility
Main Classes
Each of the 10 below main categories has 10 secondary categories within which there are another 10 subcategories.
▪ 000 – Computer science, information & general works
▪ 100 – Philosophy and psychology
▪ 200 – Religion
▪ 300 – Social sciences
▪ 400 – Language
▪ 500 – Science (including mathematics)
▪ 600 – Technology/Applied Science
▪ 700 – Arts and recreation
▪ 800 – Literature
▪ 900 – History, geography, and biography
Melville Dewey
December 10, 1851 – December 26, 1931
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