Classification
100 - Philosophy & psychology
610 - Medicine & health
780 - Music
300 - Social sciences
3
330 - Economics
3
370 - Education
3
000 - Computer science, information & general works
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
320 - Political science
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
530 - Physics
1
612 - Human physiology
1
800 - Literature & rhetoric
1