Classification
100 - Philosophy & psychology
300 - Social sciences
320 - Political science
800 - Literature & rhetoric
330 - Economics
3
000 - Computer science, information & general works
2
200 - Religion
2
333 - Economics of land & energy
2
400 - Language
2
410 - Linguistics
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
780 - Music
1