Classification
320 - Political science
780 - Music
330 - Economics
40
700 - The arts; fine & decorative arts
28
900 - History & geography
23
100 - Philosophy & psychology
10
300 - Social sciences
9
370 - Education
8
400 - Language
7
600 - Technology
7
333 - Economics of land & energy
6
410 - Linguistics
6
200 - Religion
5
301 - Sociology & anthropology
5
620 - Engineering & allied operations
5
140 - Specific philosophical schools
4
380 - Commerce, communications & transportation
4
770 - Photography, photographs & computer art
4
000 - Computer science, information & general works
3
297 - Islam, Babism & Bahai Faith
3
304 - Factors affecting social behavior
3
340 - Law
3
610 - Medicine & health
3
800 - Literature & rhetoric
3
530 - Physics
2
630 - Agriculture & related technologies
2
720 - Architecture
2
170 - Ethics
1
363 - Other social problems & services
1
398 - Folklore
1
581 - Specific topics in natural history
1
658 - General management
1
791 - Public performances
1