Classification
900 - History & geography
513
800 - Literature & rhetoric
142
700 - The arts; fine & decorative arts
105
200 - Religion
92
100 - Philosophy & psychology
79
940 - History of Europe
61
870 - Italic literatures; Latin literature
54
320 - Political science
53
140 - Specific philosophical schools
51
809 - History, description & criticism
51
330 - Economics
48
300 - Social sciences
37
340 - Law
37
189 - Medieval western philosophy
35
400 - Language
27
720 - Architecture
24
780 - Music
24
410 - Linguistics
22
610 - Medicine & health
21
297 - Islam, Babism & Bahai Faith
18
380 - Commerce, communications & transportation
16
820 - English & Old English literatures
15
306 - Culture & institutions
14
370 - Education
14
000 - Computer science, information & general works
13
170 - Ethics
12
180 - Ancient, medieval & eastern philosophy
12
941 - British Isles
12
160 - Logic
10
363 - Other social problems & services
10
930 - History of ancient world to ca. 499
9
942 - England & Wales
9
296 - Judaism
8
301 - Sociology & anthropology
8
305 - Social groups
8
398 - Folklore
7
470 - Italic languages; Latin
7
576 - Genetics & evolution
7
580 - Plants (Botany)
7
841 - French poetry
7
909 - World history
7
333 - Economics of land & energy
6
520 - Astronomy & allied sciences
6
551 - Geology, hydrology & meteorology
6
600 - Technology
6
709 - Historical, geographic & persons treatment
6
945 - Italian Peninsula & adjacent islands
6
091 - Manuscripts
5
120 - Epistemology, causation & humankind
5
210 - Philosophy & theory of religion
5
more ...