Classification
100 - Philosophy & psychology
620 - Engineering & allied operations
600 - Technology
40
700 - The arts; fine & decorative arts
25
900 - History & geography
24
610 - Medicine & health
21
330 - Economics
17
300 - Social sciences
16
320 - Political science
16
370 - Education
16
333 - Economics of land & energy
15
630 - Agriculture & related technologies
13
170 - Ethics
11
363 - Other social problems & services
11
140 - Specific philosophical schools
10
380 - Commerce, communications & transportation
9
000 - Computer science, information & general works
8
340 - Law
7
720 - Architecture
7
400 - Language
6
500 - Natural sciences & mathematics
6
780 - Music
6
301 - Sociology & anthropology
5
410 - Linguistics
5
576 - Genetics & evolution
5
200 - Religion
4
530 - Physics
4
540 - Chemistry & allied sciences
3
580 - Plants (Botany)
3
120 - Epistemology, causation & humankind
2
364 - Criminology
2
657 - Accounting
2
658 - General management
2
800 - Literature & rhetoric
2
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
770 - Photography, photographs & computer art
1
791 - Public performances
1