Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
170 - Ethics
340 - Law
140 - Specific philosophical schools
2
320 - Political science
2
400 - Language
2
000 - Computer science, information & general works
1
333 - Economics of land & energy
1
500 - Natural sciences & mathematics
1
530 - Physics
1
576 - Genetics & evolution
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1