Classification
400 - Language
900 - History & geography
410 - Linguistics
263
800 - Literature & rhetoric
169
700 - The arts; fine & decorative arts
144
320 - Political science
82
100 - Philosophy & psychology
62
340 - Law
62
370 - Education
53
300 - Social sciences
47
140 - Specific philosophical schools
43
200 - Religion
42
600 - Technology
42
000 - Computer science, information & general works
41
330 - Economics
34
620 - Engineering & allied operations
34
380 - Commerce, communications & transportation
32
414 - Phonology & phonetics
32
301 - Sociology & anthropology
27
363 - Other social problems & services
23
333 - Economics of land & energy
20
780 - Music
19
576 - Genetics & evolution
18
297 - Islam, Babism & Bahai Faith
14
491 - East Indo-European & Celtic languages
14
610 - Medicine & health
14
304 - Factors affecting social behavior
12
500 - Natural sciences & mathematics
11
170 - Ethics
8
720 - Architecture
8
398 - Folklore
7
120 - Epistemology, causation & humankind
6
581 - Specific topics in natural history
5
840 - Literatures of Romance languages
5
630 - Agriculture & related technologies
4
658 - General management
4
770 - Photography, photographs & computer art
4
830 - Literatures of Germanic languages
4
891 - East Indo-European & Celtic literatures
4
296 - Judaism
3
530 - Physics
3
540 - Chemistry & allied sciences
3
580 - Plants (Botany)
3
791 - Public performances
3
831 - German poetry
3
920 - Biography, genealogy & insignia
3
943 - Central Europe; Germany
3
160 - Logic
2
302 - Social interaction
2
306 - Culture & institutions
2
more ...