Classification
000 - Computer science, information & general works
600 - Technology
700 - The arts; fine & decorative arts
380 - Commerce, communications & transportation
3
400 - Language
3
320 - Political science
2
410 - Linguistics
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
300 - Social sciences
1
520 - Astronomy & allied sciences
1
620 - Engineering & allied operations
1