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Columba Academy: Dewey Decimal Classification System

  How are books organized here?

 
How to Use the Dewey Decimal Classification System

Iona College Libraries employ the Dewey Decimal System.  It 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.

These divisions help decide where a book "belongs" in the Dewey system, and helps us to find the book's location on the shelf. For example, books about astronomy are given the "call number" 520. To see what books your library currently has on astronomy, go the 500s room on the third floor and find the books that have 520 as the beginning of their call number.

The major Dewey Decimal divisions are: 

000 Computers, Information, & General Reference

100 Philosophy & Psychology
200 Religion
300 Social Sciences
400 Language
500 Science
600 Technology
700 Arts & Recreation
800 Literature
900 History & Geography

The Dewey Decimal System Hundred Divisions are:

000-Generalities
100- Philosophy & Psychology
010 Bibliography 110 Metaphysics
020 Library & Information Sciences 120 Epistemology
030 General Encyclopedias 130 Astrology, Parapsychology & the Occult
050 General Periodicals 140 Specific Philosophical Schools
060 General Organizations & Museums 150 Psychology
070 Journalism, Newspapers 160 Logic
080 General Collections 170 Ethics (Moral, Philosophy, Bioethics)
090 Manuscripts, Rare Books 180 Ancient Medieval, Oriental Philosophy
  190 Modern Western Philosophy

 

200 Religion
300 Social Sciences
210 Philosophy & theory of religion 310 General statistics
220 Bible 320 Political science
230 Christian theology 330 Economics
240 Christian moral & devotional theology 340 Law
250 Christian orders & local churches 350 Public administration
260 Christian social theology 360 Social problems & services
270 Christian church history 370 Education
280 Christian denominations & sects 380 Commerce, communications, transport
290 Other & comparative religions 390 Customs, etiquette, folklore

 

400 Languages
500 Natural Science & Mathematics
410 Linguistics 510 Mathematics
420 English & Old English Languages 520 Astronomy & allied sciences
430 German & related languages 530 Physics
440 French & related languages 540 Chemistry & allied sciences
450 Italian, Romanian & related languages 550 Earth sciences
460 Spanish & Portuguese languages 560 Fossils & prehistoric life
470 Italic languages (Latin) 570 Biology & life sciences
480 Classical & Modern Greek languages 580 Plants (Botany)
490 Other languages 590 Animals (Zoology)

 

600 Technology (applied sciences)
700 The Arts
610 Medical sciences (Medicine, Psychiatry) 710 Landscaping & area planning
620 Engineering 720 Architecture
630 Agriculture 730 Sculpture
640 Home economics & family living 740 Drawings & decorative arts
650 Management & public relations 750 Paintings & painters
660 Chemical engineering 760 Graphic arts (Printmaking & prints)
670 Manufacturing 770 Photography
680 Manufacturing specific products 780 Music
690 Buildings 790 Sports, games & entertainment

 

800 Literature & Rhetoric
900 Geography & History
810 American literature in English 910 Geography & travel
820 English literature 920 Biography & genealogy
830 Literature of Germanic language 930 History of the ancient world (to ca. 499 A.D.)
840 French & related literatures 940 History of Europe (ca. 500 A.D.- )
850 Italian, Romanian & related literatures 950 General history of Asia (Far East)
860 Spanish & Portuguese literatures 960 General history of Africa
870 Latin & Italic literatures 970 General history of North America
880 Classical & modern Greek literatures 980 General history of South America
890 Literatures of other languages 990 General history of other areas
 

Subject Guide

Cynthia Denesevich
Contact:
715 North Avenue
New Rochelle, NY 10801
Direct: 914-633-2525



Reference Desk: 914-637-7716
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