Classification
320 - Political science
700 - The arts; fine & decorative arts
800 - Literature & rhetoric
330 - Economics
21
900 - History & geography
17
000 - Computer science, information & general works
11
333 - Economics of land & energy
10
140 - Specific philosophical schools
9
363 - Other social problems & services
9
600 - Technology
8
380 - Commerce, communications & transportation
7
100 - Philosophy & psychology
6
400 - Language
5
170 - Ethics
4
200 - Religion
4
300 - Social sciences
4
410 - Linguistics
4
551 - Geology, hydrology & meteorology
4
297 - Islam, Babism & Bahai Faith
3
301 - Sociology & anthropology
3
304 - Factors affecting social behavior
3
340 - Law
3
610 - Medicine & health
3
720 - Architecture
3
780 - Music
3
370 - Education
2
576 - Genetics & evolution
2
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
791 - Public performances
2
120 - Epistemology, causation & humankind
1
398 - Folklore
1
500 - Natural sciences & mathematics
1
530 - Physics
1
620 - Engineering & allied operations
1
657 - Accounting
1
658 - General management
1