Classification
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
800 - Literature & rhetoric
333 - Economics of land & energy
11
000 - Computer science, information & general works
9
600 - Technology
9
900 - History & geography
9
363 - Other social problems & services
7
620 - Engineering & allied operations
7
330 - Economics
6
720 - Architecture
6
320 - Political science
5
140 - Specific philosophical schools
4
580 - Plants (Botany)
4
610 - Medicine & health
4
340 - Law
3
576 - Genetics & evolution
3
630 - Agriculture & related technologies
3
100 - Philosophy & psychology
2
170 - Ethics
2
300 - Social sciences
2
400 - Language
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
658 - General management
2
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
590 - Animals (Zoology)
1
612 - Human physiology
1
657 - Accounting
1
780 - Music
1
791 - Public performances
1