Classification
100 - Philosophy & psychology
300 - Social sciences
800 - Literature & rhetoric
900 - History & geography
700 - The arts; fine & decorative arts
5
200 - Religion
4
320 - Political science
3
000 - Computer science, information & general works
2
301 - Sociology & anthropology
2
330 - Economics
2
333 - Economics of land & energy
2
340 - Law
2
610 - Medicine & health
2
780 - Music
2
120 - Epistemology, causation & humankind
1
363 - Other social problems & services
1
370 - Education
1
400 - Language
1
410 - Linguistics
1
600 - Technology
1