Classification
791 - Public performances
900 - History & geography
68
700 - The arts; fine & decorative arts
45
320 - Political science
18
380 - Commerce, communications & transportation
18
100 - Philosophy & psychology
15
800 - Literature & rhetoric
13
300 - Social sciences
10
600 - Technology
10
780 - Music
9
170 - Ethics
6
301 - Sociology & anthropology
6
330 - Economics
6
140 - Specific philosophical schools
5
340 - Law
5
363 - Other social problems & services
5
370 - Education
5
400 - Language
5
410 - Linguistics
5
581 - Specific topics in natural history
4
610 - Medicine & health
4
000 - Computer science, information & general works
3
120 - Epistemology, causation & humankind
3
333 - Economics of land & energy
3
576 - Genetics & evolution
3
770 - Photography, photographs & computer art
3
200 - Religion
2
620 - Engineering & allied operations
2
297 - Islam, Babism & Bahai Faith
1
398 - Folklore
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
590 - Animals (Zoology)
1
612 - Human physiology
1
658 - General management
1
720 - Architecture
1