Dewey Decimal Classification System

System used to sort non-fiction books.

Dewy Decimal Numbers

000-generalities
100-philosophy
200-reigion
300-social sciences
400-languages
500-science and math
600-people using science and technology
800-literature
900-geography and history

Organise your books !

Melvol Dewey

Melvol Dewey invented the dewey decimal system