Classification
800 - Literature & rhetoric
10
320 - Political science
9
741 - Drawing & drawings
9
745 - Decorative arts
8
900 - History & geography
8
100 - Philosophy & psychology
6
700 - The arts; fine & decorative arts
6
330 - Economics
5
400 - Language
5
743 - Drawing & drawings by subject
5
793 - Indoor games & amusements
5
794 - Indoor games of skill
5
140 - Specific philosophical schools
4
600 - Technology
4
809 - History, description & criticism
4
300 - Social sciences
3
410 - Linguistics
3
620 - Engineering & allied operations
3
813 - American fiction in English
3
820 - English & Old English literatures
3
000 - Computer science, information & general works
2
153 - Mental processes & intelligence
2
200 - Religion
2
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
500 - Natural sciences & mathematics
2
004 - Data processing & computer science
1
005 - Computer programming, programs & data
1
006 - Special computer methods
1
111 - Ontology
1
128 - Humankind
1
135 - Dreams & mysteries
1
297 - Islam, Babism & Bahai Faith
1
340 - Law
1
370 - Education
1
380 - Commerce, communications & transportation
1
430 - Germanic languages; German
1
519 - Probabilities & applied mathematics
1
530 - Physics
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
658 - General management
1
740 - Drawing & decorative arts
1
780 - Music
1
791 - Public performances
1
796 - Athletic & outdoor sports & games
1
801 - Philosophy & theory
1
844 - French essays
1
more ...