Classification
370 - Education
800 - Literature & rhetoric
900 - History & geography
27
400 - Language
21
140 - Specific philosophical schools
18
100 - Philosophy & psychology
17
333 - Economics of land & energy
15
700 - The arts; fine & decorative arts
14
600 - Technology
12
330 - Economics
10
320 - Political science
9
000 - Computer science, information & general works
8
200 - Religion
8
300 - Social sciences
8
363 - Other social problems & services
7
410 - Linguistics
7
610 - Medicine & health
6
380 - Commerce, communications & transportation
4
170 - Ethics
3
304 - Factors affecting social behavior
3
500 - Natural sciences & mathematics
3
530 - Physics
3
658 - General management
3
301 - Sociology & anthropology
2
620 - Engineering & allied operations
2
780 - Music
2
791 - Public performances
2
120 - Epistemology, causation & humankind
1
520 - Astronomy & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1
770 - Photography, photographs & computer art
1