Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
300 - Social sciences
1
320 - Political science
1
330 - Economics
410 - Linguistics
1
530 - Physics
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
720 - Architecture
1
770 - Photography, photographs & computer art
780 - Music
1
900 - History & geography
1