Classification
140 - Specific philosophical schools
200 - Religion
64
900 - History & geography
30
100 - Philosophy & psychology
29
170 - Ethics
22
700 - The arts; fine & decorative arts
17
301 - Sociology & anthropology
14
320 - Political science
12
340 - Law
9
330 - Economics
8
370 - Education
8
800 - Literature & rhetoric
8
610 - Medicine & health
7
333 - Economics of land & energy
6
363 - Other social problems & services
6
530 - Physics
5
600 - Technology
5
000 - Computer science, information & general works
4
297 - Islam, Babism & Bahai Faith
4
300 - Social sciences
4
410 - Linguistics
4
581 - Specific topics in natural history
4
576 - Genetics & evolution
3
160 - Logic
2
551 - Geology, hydrology & meteorology
2
120 - Epistemology, causation & humankind
1
227 - Epistles
1
230 - Christianity & Christian theology
1
233 - Humankind
1
296 - Judaism
1
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
361 - Social problems & social welfare in general
1
580 - Plants (Botany)
1
620 - Engineering & allied operations
1
770 - Photography, photographs & computer art
1