The Dewey Decimal System

and how to use it


The Dewey Decimal System organizes books into 10 topic areas, which are then broken into smaller and smaller topics.  Each topic is assigned a number, known as a "call number".   For example, books on animals usually start with the call number of 599.  For specific topics like lions or tigers the call number would start with the animals call number of 599 followed by a decimal number for the topic of Lions.  So the call number would look like this 599.74.

Here is a quick look at the 10 topic areas of the Dewey Decimal System

000-099
General Knowledge
Big foot, UFO's, Ghosts,
Unexplained Mysteries, & Curiosities
Computer Guides & Instruction
Almanacs & Encyclopedias
Trivia & World Records
100-199
Psychology and Philosophy
Death & Dying
Ethics & Feelings
Logic
Making Friends
Optical Illusions
Superstitions
200-299
Religions and Mythology
Current and Ancient Religions
Ancient Mythology
Spirituality
300-399
Social Sciences and Folklore
Dictionaries
Thesauruses
Different Languages
Punctuation and Grammar
500-599
Math and Science
Animals
Chemistry
Dinosaurs
Physics
Planets
Plants


600-699
Medicine and Technology
Engineering
Health
Exercise
Farming
Autos
Cooking

700-799
Arts & Recreation
Crafts
Drawing
Painting
Collectibles
Jokes
Music
Sports

800-899
Literature
Plays
Poetry
Shakespeare
Writing
900-999
Geography and History
Biographies
Travel
History
Lands & Peoples
Atlases

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