Dewey Decimal System
How items are arranged in numerical order.
The Dewey Decimal System coordinates materials on the same subject and on related subjects to make items easier to find on the library shelves. This system organizes information into 10 broad categories. Each major category is divided into 9 sub-categories. Each sub-category is further divided into 9 specialized topics that can be broken down even further by adding decimals. Each division becomes more specific.
000 Generalities
010 Bibliography
020 Library & Informational Services
030 General Encyclopedic Works
040 (Not used)
050 General serials & other indexes
060 General Organizations & Museums
070 News Media, Journalism, Publishing
080 General Collections
090 Manuscripts & Rare Books
100 Philosophy & Psychology
110 Metaphysics
120 Epistemology, Causation, Humankind
130 Paranormal Phenomena
140 Specific Philosophical
150 Psychological/Self Help
160 Logic
170 Ethics (Moral philosophy)
180 Ancient, Medieval, Oriental Philosophy
190 Modern Western Philosophy
200 Religion
210 Philosophy & Theory of Religion
220 Bible
230 Christian Theology
240 Christian Moral & Devotional Theology
250 Christian Orders & Local Church
260 Christian Social Theology
270 Christian Church History
280 Christian Denominations
290 Other Religions
300 Social Sciences
310 General Statistics
320 Political Science
330 Economics
340 Law
350 Public Administration
360 Social Problems & Services
370 Education
380 Commerce, Communications, Transport
390 Customs
400 Language
410 Linguistics
420 English & Old English
430 Germanic Languages (German)
440 Romance Languages (French)
450 Italian, Romanian
460 Spanish & Portuguese Language
470 Italic Languages (Latin)
480 Hellenic Languages (Classical Greek)
490 Other Languages
500 Natural Sciences & Mathematics
510 Mathematics
520 Astronomy & Allied Sciences
530 Physics
540 Chemistry & Allied Sciences
550 Earth Sciences
560 Paleontology (Paleozoology)
570 Life Sciences (Biology)
580 Plants
590 Animals
600 Technology (Applied Sciences)
610 Medicine & Health
620 Engineering & allied Operations
630 Agriculture
640 Home & Family Management
650 Management & Business
660 Chemical Engineering
670 Manufacturing
680 Manufacture of Products for Specific Uses
690 Building & Construction/Remodeling
700 The Arts
710 Civic & Language Art
720 Architecture
730 Plastic Arts (Sculpture)
740 Drawing & Decorative Arts
750 Painting & Paintings
760 Graphic Arts (Printmaking & Prints)
770 Photography & Photographs
780 Music
790 Recreational & Performing Arts, Sports
800 Literature & Rhetoric
810 American Literature in English
820 English & Old English Literatures
830 Germanic Literatures
840 Romance Literatures
850 Italian & Romanian Literatures
860 Spanish & Portuguese Literatures
870 Italic Literature (Latin)
880 Hellenic Literatures (Classical Greek)
890 Literatures of Other Languages
900 Geography & History
910 Geography & Travel
920 Collective Biography
930 History of Ancient World
940 History of Europe
950 History of Asia (Far East)
960 History of Africa
970 History of North America
980 History of South America
990 History of Other Areas