Classification
100 - Philosophy & psychology
200 - Religion
330 - Economics
410 - Linguistics
800 - Literature & rhetoric
4
333 - Economics of land & energy
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
300 - Social sciences
2
320 - Political science
2
363 - Other social problems & services
2
400 - Language
2
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
370 - Education
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
770 - Photography, photographs & computer art
1
780 - Music
1