Classification
800 - Literature & rhetoric
900 - History & geography
700 - The arts; fine & decorative arts
245
410 - Linguistics
211
320 - Political science
119
100 - Philosophy & psychology
117
400 - Language
117
140 - Specific philosophical schools
93
200 - Religion
81
600 - Technology
70
300 - Social sciences
69
830 - Literatures of Germanic languages
61
330 - Economics
58
620 - Engineering & allied operations
58
340 - Law
50
809 - History, description & criticism
40
333 - Economics of land & energy
37
891 - East Indo-European & Celtic literatures
36
000 - Computer science, information & general works
34
610 - Medicine & health
33
363 - Other social problems & services
31
380 - Commerce, communications & transportation
31
301 - Sociology & anthropology
29
170 - Ethics
27
370 - Education
27
780 - Music
27
576 - Genetics & evolution
22
720 - Architecture
21
304 - Factors affecting social behavior
16
500 - Natural sciences & mathematics
15
296 - Judaism
13
791 - Public performances
13
398 - Folklore
12
831 - German poetry
11
297 - Islam, Babism & Bahai Faith
10
630 - Agriculture & related technologies
9
833 - German fiction
9
530 - Physics
8
580 - Plants (Botany)
8
770 - Photography, photographs & computer art
8
414 - Phonology & phonetics
7
880 - Hellenic literatures; classical Greek
7
540 - Chemistry & allied sciences
6
581 - Specific topics in natural history
6
120 - Epistemology, causation & humankind
5
551 - Geology, hydrology & meteorology
5
801 - Philosophy & theory
5
840 - Literatures of Romance languages
5
658 - General management
4
839 - Other Germanic literatures
4
more ...