Classification
100 - Philosophy & psychology
370 - Education
900 - History & geography
5
333 - Economics of land & energy
3
140 - Specific philosophical schools
2
170 - Ethics
2
300 - Social sciences
2
400 - Language
2
600 - Technology
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
320 - Political science
1
363 - Other social problems & services
1
530 - Physics
1
576 - Genetics & evolution
1
700 - The arts; fine & decorative arts
1
791 - Public performances
1