Classification
120 - Epistemology, causation & humankind
100 - Philosophy & psychology
4
140 - Specific philosophical schools
3
170 - Ethics
3
900 - History & geography
3
000 - Computer science, information & general works
2
200 - Religion
2
410 - Linguistics
2
800 - Literature & rhetoric
2
300 - Social sciences
1
500 - Natural sciences & mathematics
1
530 - Physics
1
580 - Plants (Botany)
1
700 - The arts; fine & decorative arts
1