Classification
100 - Philosophy & psychology
170 - Ethics
200 - Religion
140 - Specific philosophical schools
6
900 - History & geography
5
120 - Epistemology, causation & humankind
3
333 - Economics of land & energy
2
410 - Linguistics
2
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
160 - Logic
1
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
363 - Other social problems & services
1
370 - Education
1
600 - Technology
1