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Library of Congress Subject Areas (16891)
- A General Works (209)
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  - AM Museums (General). Collectors and collecting (General) (1)
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- B Philosophy. Psychology. Religion (382)
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- C Auxiliary Sciences of History (1)
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- D History General and Old World (27)
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- G Geography. Anthropology. Recreation (379)
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- H Social Sciences (2010)
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- J Political Science (130)
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- L Education (2025)
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- M Music and Books on Music (10)
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- N Fine Arts (18)
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- Q Science (2946)
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- R Medicine (132)
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- S Agriculture (83)
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- T Technology (10392)
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  - TK Electrical engineering. Electronics Nuclear engineering (1355)
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- Z Bibliography. Library Science. Information Resources (100)
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