Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
170 - Ethics
200 - Religion
4
140 - Specific philosophical schools
3
320 - Political science
2
900 - History & geography
2
000 - Computer science, information & general works
1
160 - Logic
1
380 - Commerce, communications & transportation
1
400 - Language
1
410 - Linguistics
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1