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TextDewey Decimal Classification System
The Dewey Decimal Classification System is used by libraries to organize their collections by subject. Main subjects are given a three-digit number: 200, 300, etc., and then further broken down into sub-categories: 220, 230, 240, etc. Subdivisions of the sub-categories are shown by numbers after a decimal point: 220.550, 350.90, etc.
Following is a list of the subjects and some of the subdivisions used in the Dewey Decimal System.
| 000 GENERALITIES | ||
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010 Bibliography 020 Library and Information Sciences 030 General Encyclopedic Works 040 Not assigned 050 General Serial Publications |
060 General Organizations & Museology 070 News Media, Journalism, Publishing 080 General Collections 090 Manuscripts & Rare Books |
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| 100 PHILOSOPHY | ||
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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 |
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| 200 RELIGION | ||
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210 Philosophy & Theory of Religion 220 Bible 230 Christian Theology 240 Christian Moral & Devotional Theology 250 Christian Orders & Local Church |
260 Social & Ecclesiastical Theology 270 History of Christianity & Christian Church 280 Christian Denominations & Sects 290 Comparative Religion & Other Religion |
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| 300 SOCIAL SCIENCES | ||
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310 Collections of General Statistics 320 Political Science 330 Economics 340 Law 350 Public Administration & Military Science |
360 Social Problems & Services 370 Education 380 Commerce, Communication, Transportation 390 Customs, Etiquette, Folklore |
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| 400 LANGUAGE | ||
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410 Linguistics 420 English & Old English 430 Germanic Languages German 440 Romance Languages French 450 Italian, Romanian, Rhaeto-Romanic |
460 Spanish & Portuguese Languages 470 Italic Languages Latin 480 Hellenic Languages Classical Greek 490 Other Languages |
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| 500 NATURAL SCIENCES & MATHEMATICS | ||
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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 |
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| 600 TECHNOLOGY (Applied Sciences) | ||
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610 Medical Sciences Medicine 620 Engineering & Allied Operations 630 Agriculture & Related Technology 640 Home Economics & Family Living 650 Management & Auxiliary Services |
660 Chemical Engineering 670 Manufacturing 680 Manufacture for Specific Uses 690 Buildings |
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| 700 THE ARTS (Fine and Decorative) | ||
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710 Civic & Landscape Art 720 Architecture 730 Plastic Arts Sculpture 740 Drawing & Decorative Arts 750 Painting and Paintings |
760 Graphic Arts Printmaking 770 Photography & Photographs 780 Music 790 Recreational & Performing Arts |
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| 800 LITERATURE & RHETORIC | ||
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810 American Literature in English 820 English & Old English Literatures 830 Literatures of Germanic Languages 840 Literatures of Romance Languages 850 Italian, Romanian, Phaeto-Romanic |
860 Spanish & Portuguese Literatures 870 Italic Literatures Latin 880 Hellenic Literature Classical Greek 890 Literatures of Other Languages |
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| 900 GEOGRAPHY & HISTORY | ||
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910 Geography & Travel 920 Biography, Genealogy, Insignia 930 History of Ancient World to ca. 499 940 General History of Europe 950 General History of Asia |
960 General History of Africa 970 General History of North America 980 General History of South America 990 General History of Other Areas |
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