Classification
100 - Philosophy & psychology
2
330 - Economics
2
600 - Technology
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
370 - Education
1
380 - Commerce, communications & transportation
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
780 - Music
1
900 - History & geography
1