Classification
100 - Philosophy & psychology
700 - The arts; fine & decorative arts
900 - History & geography
200 - Religion
46
800 - Literature & rhetoric
41
300 - Social sciences
37
320 - Political science
30
600 - Technology
26
140 - Specific philosophical schools
24
370 - Education
22
330 - Economics
20
400 - Language
20
333 - Economics of land & energy
18
780 - Music
18
000 - Computer science, information & general works
16
301 - Sociology & anthropology
14
620 - Engineering & allied operations
14
720 - Architecture
14
363 - Other social problems & services
13
410 - Linguistics
13
610 - Medicine & health
13
170 - Ethics
12
340 - Law
11
380 - Commerce, communications & transportation
10
530 - Physics
8
770 - Photography, photographs & computer art
7
120 - Epistemology, causation & humankind
6
500 - Natural sciences & mathematics
6
576 - Genetics & evolution
5
540 - Chemistry & allied sciences
4
111 - Ontology
3
297 - Islam, Babism & Bahai Faith
3
581 - Specific topics in natural history
3
630 - Agriculture & related technologies
3
658 - General management
3
791 - Public performances
3
520 - Astronomy & allied sciences
2
001 - Knowledge
1
115 - Time
1
128 - Humankind
1
150 - Psychology
1
155 - Differential & developmental psychology
1
160 - Logic
1
184 - Platonic philosophy
1
193 - Philosophy of Germany & Austria
1
296 - Judaism
1
414 - Phonology & phonetics
1
580 - Plants (Botany)
1
590 - Animals (Zoology)
1
612 - Human physiology
1
more ...