Classification
100 - Philosophy & psychology
10
301 - Sociology & anthropology
581 - Specific topics in natural history
900 - History & geography
7
300 - Social sciences
5
320 - Political science
5
000 - Computer science, information & general works
4
200 - Religion
4
363 - Other social problems & services
4
140 - Specific philosophical schools
3
170 - Ethics
3
576 - Genetics & evolution
3
700 - The arts; fine & decorative arts
3
333 - Economics of land & energy
2
400 - Language
2
530 - Physics
2
610 - Medicine & health
2
120 - Epistemology, causation & humankind
1
330 - Economics
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
590 - Animals (Zoology)
1
600 - Technology
1
780 - Music
1
791 - Public performances
1
800 - Literature & rhetoric
1