Classification
000 - Computer science, information & general works
720 - Architecture
700 - The arts; fine & decorative arts
80
600 - Technology
68
333 - Economics of land & energy
58
620 - Engineering & allied operations
54
900 - History & geography
42
330 - Economics
38
363 - Other social problems & services
35
380 - Commerce, communications & transportation
28
580 - Plants (Botany)
28
610 - Medicine & health
24
745 - Decorative arts
21
576 - Genetics & evolution
20
741 - Drawing & drawings
20
140 - Specific philosophical schools
19
400 - Language
17
320 - Political science
16
551 - Geology, hydrology & meteorology
15
500 - Natural sciences & mathematics
14
630 - Agriculture & related technologies
13
370 - Education
12
414 - Phonology & phonetics
7
540 - Chemistry & allied sciences
7
658 - General management
7
800 - Literature & rhetoric
6
100 - Philosophy & psychology
5
300 - Social sciences
5
170 - Ethics
3
340 - Law
3
410 - Linguistics
3
530 - Physics
3
581 - Specific topics in natural history
2
657 - Accounting
2
780 - Music
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
550 - Earth sciences
1
612 - Human physiology
1
770 - Photography, photographs & computer art
1