Classification
120 - Epistemology, causation & humankind
100 - Philosophy & psychology
8
170 - Ethics
2
900 - History & geography
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
160 - Logic
1
200 - Religion
1
300 - Social sciences
1
320 - Political science
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
530 - Physics
1
580 - Plants (Botany)
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
920 - Biography, genealogy & insignia
1