Classification
340 - Law
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
900 - History & geography
600 - Technology
10
620 - Engineering & allied operations
10
363 - Other social problems & services
8
140 - Specific philosophical schools
7
720 - Architecture
7
330 - Economics
5
333 - Economics of land & energy
5
576 - Genetics & evolution
5
300 - Social sciences
4
320 - Political science
4
370 - Education
4
610 - Medicine & health
4
200 - Religion
3
500 - Natural sciences & mathematics
3
630 - Agriculture & related technologies
3
800 - Literature & rhetoric
3
000 - Computer science, information & general works
2
170 - Ethics
2
580 - Plants (Botany)
2
780 - Music
2
100 - Philosophy & psychology
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
400 - Language
1
551 - Geology, hydrology & meteorology
1
658 - General management
1
770 - Photography, photographs & computer art
1