An international library classification system that organizes materials by subject into 10 main classes.
Overview
Dewey Decimal Classification
The Dewey Decimal Classification (DDC) is a library classification system devised by Melvil Dewey in 1876 and is the most widely used library classification system in the world. It is used in more than 200,000 libraries in over 135 countries and systematically organizes all knowledge using Arabic numerals in a decimal system. It is currently maintained by OCLC (Online Computer Library Center) and is continuously updated as WebDewey.
library
classification
book classification
OCLC
knowledge organization
| code | slug | name | description |
|---|---|---|---|
| 000 | computer-science-information-general-works | Computer Science, Information & General Works | General works including computer science, library science, encyclopedias, and materials not limited to specific fields. |
| 100 | philosophy-psychology | Philosophy & Psychology | Philosophy, psychology, metaphysics, epistemology, ethics, logic, and related subjects concerning human thought and mind. |
| 200 | religion | Religion | Religious philosophy, the Bible, Christian theology, and other world religions. |
| 300 | social-sciences | Social Sciences | Sociology, political science, economics, law, education, and other aspects of society and its institutions. |
| 400 | language | Language | Linguistics, language theory, and specific languages including English, French, German, Spanish, and others. |
| 500 | natural-sciences-mathematics | Natural Sciences and Mathematics | Mathematics, astronomy, physics, chemistry, biology, earth sciences, and other natural phenomena. |
| 600 | technology | Technology | Medicine, engineering, agriculture, manufacturing, domestic life, and applied sciences. |
| 700 | arts | The Arts | Fine and decorative arts, architecture, music, performing arts, sports, and recreation. |
| 800 | literature-rhetoric | Literature & Rhetoric | Literature, poetry, drama, and rhetoric in various languages. |
| 900 | history-geography | History & Geography | World history, biography, geography, and travel. |
- Dewey Decimal Classification | OCLC official
- Dewey Program | Library of Congress official
- Dewey Decimal Classification - Wikipedia (Japanese) wikipedia
- Dewey Decimal Classification - Wikipedia wikipedia