Classification
791 - Public performances
900 - History & geography
25
700 - The arts; fine & decorative arts
17
380 - Commerce, communications & transportation
12
100 - Philosophy & psychology
8
320 - Political science
8
800 - Literature & rhetoric
5
140 - Specific philosophical schools
4
600 - Technology
4
170 - Ethics
3
370 - Education
3
400 - Language
3
120 - Epistemology, causation & humankind
2
200 - Religion
2
300 - Social sciences
2
301 - Sociology & anthropology
2
330 - Economics
2
340 - Law
2
576 - Genetics & evolution
2
581 - Specific topics in natural history
2
780 - Music
2
000 - Computer science, information & general works
1
297 - Islam, Babism & Bahai Faith
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
610 - Medicine & health
1
612 - Human physiology
1
770 - Photography, photographs & computer art
1