Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
160 - Logic
2
300 - Social sciences
600 - Technology
900 - History & geography
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
500 - Natural sciences & mathematics
1
530 - Physics
1
700 - The arts; fine & decorative arts
1