Dewey Decimal System
000 – Generalities
010 – Bibliography
020 - Library & Information Sciences
030 - General Encyclopedic Works
040 - Unassigned
050 - General Serials & their Indexes
060 - General Organizations & Museology
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 Schools
150 – Psychology
160 – Logic
170 - Ethics (Moral Philosophy)
180 - Ancient, Medieval, Oriental Philosophy
190 - Modern Western Philosophy
200 – Religion
210 - Natural Theology
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 & Sects
290 - Other & Comparative Religions
300 - Social Sciences
310 - General Statistics
320 - Political Science
330 – Economics
340 – Law
350 - Public Administration
360 - Social Services
370 – Education
380 - Commerce, Communications, Transport
390 - Customs, Etiquette, Folklore
400 – Language
410 – Linguistics
420 - English & Old English
430 - Germanic Languages (German)
440 - Romance Languages (French)
450 - Italian, Romanian, Rhaeto-Romantic
460 - Spanish & Portuguese Languages
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
580 - Botanical Sciences
590 - Zoological Sciences
600 - Technology (Applied Sciences)
610 - Medical Sciences (Medicine)
620 - Engineering & Allied Operations
630 - Agriculture
640 - Home Economics & Family Living
650 - Management & Auxiliary Services
660 - Chemical Engineering
670 – Manufacturing
680 - Manufacture for Specific Uses
690 – Buildings
700 - The Arts
710 - Civic & Landscape Art
720 – Architecture
730 - Plastic Arts (Sculpture)
740 - Drawing & Decorative Arts
750 - Painting & Paintings
760 - Graphic Arts (Printing & Prints)
770 - Photography & Photographs
780 - Music
790 - Recreational & Performing Arts
800 - Literature
810 - American Literature in English
820 - English & Old English Literatures
830 – Literatures of Germanic Languages
840 - Literatures of Romance Languages
850 - Italian, Romania, Rhaeto-Romantic
860 - Spanish & Portuguese Literatures
870 - Italic Literatures (Latin)
880 - Hellenic Literatures (Classical Greek)
890 - Literatures of Other Languages
900 - Geography & History
910 - Geography & Travel
920 - Biography, Genealogy, Insignia)
930 - History of Ancient World
940 - General History of Europe
950 - General History of Asia (Far East)
960 - General History of Africa
970 - General History of North America
980 - General History of South America
990 - General History of Other Areas