Classification
700 - The arts; fine & decorative arts
92
600 - Technology
89
000 - Computer science, information & general works
71
333 - Economics of land & energy
59
330 - Economics
47
620 - Engineering & allied operations
41
610 - Medicine & health
40
380 - Commerce, communications & transportation
38
900 - History & geography
35
140 - Specific philosophical schools
28
320 - Political science
25
363 - Other social problems & services
25
300 - Social sciences
18
370 - Education
17
500 - Natural sciences & mathematics
16
576 - Genetics & evolution
16
658 - General management
15
580 - Plants (Botany)
14
720 - Architecture
14
400 - Language
13
551 - Geology, hydrology & meteorology
12
100 - Philosophy & psychology
9
630 - Agriculture & related technologies
9
170 - Ethics
8
340 - Law
6
615 - Pharmacology & therapeutics
6
304 - Factors affecting social behavior
5
530 - Physics
5
800 - Literature & rhetoric
5
540 - Chemistry & allied sciences
4
581 - Specific topics in natural history
4
200 - Religion
3
301 - Sociology & anthropology
3
657 - Accounting
3
410 - Linguistics
2
770 - Photography, photographs & computer art
2
791 - Public performances
2
120 - Epistemology, causation & humankind
1
361 - Social problems & social welfare in general
1
414 - Phonology & phonetics
1
550 - Earth sciences
1
612 - Human physiology
1
780 - Music
1