Classification
100 - Philosophy & psychology
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
10
370 - Education
9
400 - Language
9
900 - History & geography
9
140 - Specific philosophical schools
8
333 - Economics of land & energy
7
600 - Technology
7
320 - Political science
6
620 - Engineering & allied operations
6
610 - Medicine & health
5
780 - Music
5
170 - Ethics
4
300 - Social sciences
4
330 - Economics
4
800 - Literature & rhetoric
4
410 - Linguistics
3
791 - Public performances
3
301 - Sociology & anthropology
2
340 - Law
2
363 - Other social problems & services
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
720 - Architecture
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
590 - Animals (Zoology)
1
612 - Human physiology
1
630 - Agriculture & related technologies
1
658 - General management
1
770 - Photography, photographs & computer art
1