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Dewey Decimal Classification

by Kim Wick & Tracey Wong

What is Dewey Decimal?

It is a way to organize books the same way in different libraries.

It is a hierarchy, or a ladder like system so each book is part of a larger grouping.

It uses numbers to code each book differently.

Why use Dewey Decimal?

It is easy to use and understand.

It helps organize books and makes them quick to find.

Books that are similiar or the same subject are placed together.

How do you use Dewey Decimal?

There are three different summaries or guiding lists to use to locate books.

Use the 1st Summary to determine a main class or section.

Determine what class the book you are looking for would fall in.

The Second Summary identifies the hundreds division. The second digit in each three digit number refers to the division. For example, 600 is technology, 610 medicine and health, 620 engineering.

The Third Summary identifies the thousand sections. The third digit in each three-digit number indicates the section. For example, 610 is used for general works on medicine and health, 611 for human anatomy, 612 for human physiology, etc.

First Summary

The Ten Main Classes

000 Computer science, information, general works

100 Philosophy, psychology

200 Religion

300 Social sciences

400 Language

500 Science

600 Technology

700 Arts & recreation

800 Literature

900 History & geography

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