---
title: "DDC Breakdown"
slug: "ddc-breakdown"
updated: 2022-11-04T18:05:30Z
published: 2022-11-04T18:05:30Z
canonical: "docs.surpass.cloud/ddc-breakdown"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.surpass.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# DDC Breakdown

## Dewey Decimal Classification Scheme

The Dewey Decimal System was developed by librarian and educator Melvil Dewey. Initially copyrighted by Dewey in 1876, the Dewey Decimal System, also known as “Dewey Decimal Classification” or “DDC”, is now a trademark of OCLC.

The Dewey Decimal System is made up of ten primary categories, represented by numbers 0 through 9. Each category is then subdivided further in accordance with the depth and breadth of the given subject.

Below are the ten primary categories with their second-degree topic breakdowns. If you would like to further explore these topics in more detail, there are several resources you may use to do so, such as [OCLC's DDC Summary](https://www.oclc.org/content/dam/oclc/dewey/resources/summaries/deweysummaries.pdf).

**000 GENERAL WORKS** 020 Library and Information Science 030 General Encyclopedias 050 General Periodicals 060 General Organizations

**100 PHILOSOPHY** 110 Metaphysics 130 Psychology, occultism 140 Philosophy 150 Psychology 160 Logic

**200 RELIGION** 220 The Bible 230 Christian Doctrine 290 Comparative and Other Religions

**300 SOCIAL SCIENCES** 310 Statistics 320 Political Science 330 Economics 340 Law 350 Public Administration, Military Science 360 Social Welfare 370 Education 380 Public Services 390 Customs and Folklore

**400 SCIENCES** 410 Linguistics 420 English and Old English (Anglo-Saxon) 430 German and related languages 440 French and related Romance languages 450 Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican 460 Spanish, Portuguese, Galician 470 Latin and related Italic languages 480 Classical Greek and related Hellenic languages 490 Other languages

**500 NATURAL SCIENCES AND MATHEMATICS** 510 Mathematics 520 Astronomy 530 Physics 540 Chemistry 550 Earth sciences 560 Paleontology 570 Biology 580 Plants 590 Zoology

**600 TECHNOLOGY & APPLIED SCIENCES** 610 Medicine and health 620 Engineering and allied operations 630 Agriculture and related technologies 640 Home and family management 650 Management and auxiliary services 660 Chemical engineering and related technologies 670 Manufacturing 680 Manufacture of products for specific uses 690 Construction of buildings

**700 ARTS & RECREATION** 710 Area planning and landscape architecture 720 Architecture 730 Sculpture 740 Drawing and decorative arts 750 Painting 760 Printmaking 770 Photography, computer art, cinematography, videography 780 Music 790 Recreational and performing arts

**800 LITERATURE & RHETORIC** 810 American literature in English 820 English and Old English (Anglo-Saxon) literatures 830 German literature and literatures of related languages 840 French literature and literatures of related Romance languages 850 Literatures of Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican languages 860 Literatures of Spanish, Portuguese, Galician languages 870 Latin literature and literatures of related Italic languages 880 Classical Greek and related Hellenic languages 890 Other language

**900 HISTORY & GEOGRAPHY** 910 Geography and travel 920 Biography, genealogy, insignia 930 History of ancient world to ca. 499 940 History of Europe 950 History of Asia 960 History of Africa 970 History of North America 980 History of South America 990 History of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds