Classification
320 - Political science
900 - History & geography
226
700 - The arts; fine & decorative arts
54
943 - Central Europe; Germany
48
300 - Social sciences
47
200 - Religion
39
100 - Philosophy & psychology
30
340 - Law
26
940 - History of Europe
18
327 - International relations
16
576 - Genetics & evolution
14
800 - Literature & rhetoric
14
400 - Language
13
330 - Economics
9
370 - Education
8
322 - Relation of state to organized groups
7
324 - The political process
7
170 - Ethics
6
261 - Social theology
5
305 - Social groups
5
630 - Agriculture & related technologies
5
831 - German poetry
5
303 - Social processes
4
338 - Production
4
410 - Linguistics
4
909 - World history
4
949 - Other parts of Europe
4
140 - Specific philosophical schools
3
160 - Logic
3
270 - History of Christianity & Christian church
3
301 - Sociology & anthropology
3
306 - Culture & institutions
3
336 - Public finance
3
355 - Military science
3
382 - International commerce
3
491 - East Indo-European & Celtic languages
3
610 - Medicine & health
3
000 - Computer science, information & general works
2
193 - Philosophy of Germany & Austria
2
230 - Christianity & Christian theology
2
296 - Judaism
2
297 - Islam, Babism & Bahai Faith
2
321 - Systems of governments & states
2
351 - Public administration
2
361 - Social problems & social welfare in general
2
362 - Social welfare problems & services
2
378 - Higher education
2
808 - Rhetoric & collections of literature
2
830 - Literatures of Germanic languages
2
833 - German fiction
2
more ...