Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
300 - Social sciences
1
320 - Political science
1
330 - Economics
370 - Education
1
380 - Commerce, communications & transportation
400 - Language
1
410 - Linguistics
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
780 - Music
1
900 - History & geography