Library Search

Dewey Decimal Classification (DDC) : 500

First Summary (The Ten Main Classes)

000 : Computers, information, & general works
100 : Philosophy & psychology
200 : Religion
300 : Social sciences
400 : Language
500 : Science
600 : Technology
700 : Arts & recreation
800 : Literature
900 : History & geography

Second Summary (The Hundred Divisions)

500 : Science
510 : Mathematics
520 : Astronomy
530 : Physics
540 : Chemistry
550 : Earth sciences & geology
560 : Fossils & prehistoric life
570 : Life sciences; biology
580 : Plants (Botany)
590 : Animals (Zoology)


Third Summary (The Thousand Sections)

500 : Natural sciences & mathematics
501 : Philosophy & theory
502 : Miscellany
503 : Dictionaries & encyclopedias
504 : [Unassigned]
505 : Serial publications
506 : Organizations & management
507 : Education, research & related topics
508 : Natural history
509 : Historical, geographic & persons treatment