Understanding Dewey Decimal Classification: A Guide to Library Organization

Dewey (Dewy) is a decimal classification system used to organize books and other materials in libraries. It was developed by Melvil Dewey in the late 19th century and has been widely adopted by libraries around the world.
The Dewey Decimal Classification system assigns a unique number to each subject area, with the numbers ranging from 000 to 999. The numbers are divided into ten main classes:
000 – General works
100 – Philosophy and psychology
200 – Religion
300 – Social sciences
400 – Language
500 – Science
600 – Technology and applied sciences
700 – Arts and recreation
800 – Literature
900 – History and geography
Each class is further divided into more specific subject areas, with each number representing a specific topic or theme. For example, the number 640 represents home economics, while 641 represents cooking.
Dewey Decimal Classification is still widely used in many libraries today, although it has been updated and expanded over the years to reflect changes in knowledge and technology. It remains an important tool for librarians and researchers looking to find books and other materials on specific topics.