Classification
140 - Specific philosophical schools
610 - Medicine & health
68
700 - The arts; fine & decorative arts
51
333 - Economics of land & energy
45
000 - Computer science, information & general works
44
363 - Other social problems & services
40
380 - Commerce, communications & transportation
36
330 - Economics
31
600 - Technology
31
320 - Political science
22
620 - Engineering & allied operations
22
370 - Education
16
580 - Plants (Botany)
15
900 - History & geography
15
100 - Philosophy & psychology
10
170 - Ethics
10
304 - Factors affecting social behavior
10
340 - Law
10
551 - Geology, hydrology & meteorology
9
540 - Chemistry & allied sciences
8
630 - Agriculture & related technologies
8
658 - General management
8
200 - Religion
6
300 - Social sciences
6
800 - Literature & rhetoric
6
500 - Natural sciences & mathematics
5
530 - Physics
5
612 - Human physiology
5
576 - Genetics & evolution
4
581 - Specific topics in natural history
4
301 - Sociology & anthropology
3
720 - Architecture
3
364 - Criminology
2
414 - Phonology & phonetics
2
615 - Pharmacology & therapeutics
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
410 - Linguistics
1
550 - Earth sciences
1
770 - Photography, photographs & computer art
1
780 - Music
1
920 - Biography, genealogy & insignia
1