Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
400 - Language
900 - History & geography
700 - The arts; fine & decorative arts
5
320 - Political science
4
410 - Linguistics
4
800 - Literature & rhetoric
4
140 - Specific philosophical schools
3
200 - Religion
3
300 - Social sciences
3
363 - Other social problems & services
3
297 - Islam, Babism & Bahai Faith
2
301 - Sociology & anthropology
2
330 - Economics
2
380 - Commerce, communications & transportation
2
780 - Music
2
120 - Epistemology, causation & humankind
1
333 - Economics of land & energy
1
340 - Law
1
370 - Education
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
590 - Animals (Zoology)
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
791 - Public performances
1