Classification
700 - The arts; fine & decorative arts
900 - History & geography
21
330 - Economics
16
000 - Computer science, information & general works
14
320 - Political science
14
333 - Economics of land & energy
10
551 - Geology, hydrology & meteorology
10
363 - Other social problems & services
9
600 - Technology
8
610 - Medicine & health
8
620 - Engineering & allied operations
8
380 - Commerce, communications & transportation
7
580 - Plants (Botany)
6
800 - Literature & rhetoric
6
300 - Social sciences
4
581 - Specific topics in natural history
4
400 - Language
3
410 - Linguistics
3
414 - Phonology & phonetics
3
576 - Genetics & evolution
3
100 - Philosophy & psychology
2
170 - Ethics
2
200 - Religion
2
370 - Education
2
658 - General management
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
340 - Law
1
361 - Social problems & social welfare in general
1
530 - Physics
1
540 - Chemistry & allied sciences
1
630 - Agriculture & related technologies
1
780 - Music
1
833 - German fiction
1
882 - Classical Greek dramatic poetry & drama
1