Classification
100 - Philosophy & psychology
320 - Political science
900 - History & geography
3
700 - The arts; fine & decorative arts
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
330 - Economics
1
380 - Commerce, communications & transportation
1
400 - Language
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
720 - Architecture
1
770 - Photography, photographs & computer art
1
780 - Music
1
800 - Literature & rhetoric
1
920 - Biography, genealogy & insignia
1