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Library of Congress Subject Areas (8611)
- A General Works (54)
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- B Philosophy. Psychology. Religion (58)
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- G Geography. Anthropology. Recreation (61)
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- H Social Sciences (2016)
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    - HD2321-4730.9 Industry (122)
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        HD2741 Holding companies. Corporate governance (21)
        HD2744 Corporations—Investor relations (2)
      - HD3611-4730.9 Industrial policy. The state and industrial organization (2)
    - HD4801-8943 Labor. Work. Working class (31)
      - HD4909-5100.9 Wages (5)
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      - HD6050-6305 Classes of labor Including women, children, students, middle-aged and older persons, minorities (4)
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        HE8689-8700.95 Radio and television broadcasting (1)
      - HE9761-9900 Air transportation. Airlines (1)
  - HF Commerce (531)
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    - HF5001-6182 Business (463)
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      - HF5546-5548.6 Office management (71)
        HF5548.32-.34 Electronic commerce (22)
      - HF5548.7-5548.85 Industrial psychology (37)
      - HF5549-5549.5 Personnel management. Employment management (51)
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  - HG Finance (331)
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    - HG178 Liquidity (7)
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    - HG4001-4285 Finance management. Business finance. (23)
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    - HG4501-6051 Investment, capital formation, speculation (46)
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    - HG8011-9999 Insurance (4)
      - HG8751-9295 Life insurance (1)
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      - HG9969.5-9999 Other insurance Including automobile, burglary, credit, disaster, title insurance (1)
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  - HN Social history and conditions. Social problems. Social reform (6)
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    - HQ503-1064 The family. Marriage. Home (7)
      - HQ1060-1064 Aged. Gerontology (Social aspects). Retirement (4)
      - HQ767.8-792.2 Children. Child development Including child rearing, child life, play, socialization, children's rights (1)
      - HQ793-799.2 Youth. Adolescents. Teenagers (2)
  - HT Communities. Classes. Races (2)
    - HT1501-1595 Races Including race as a social group and race relations in general (1)
  - HX Socialism. Communism. Anarchism (1)
  - H1-99 Social Sciences (General) (98)
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    - HM621-656 Culture (3)
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    - HM711-806 Groups and organizations (13)
  - HV Social pathology. Social and public welfare. Criminology (35)
    - HV5001-5720.5 Alcoholism. Intemperance. Temperance reform (1)
    - HV551.2-639 Emergency management (4)
    - HV5725-5770 Tobacco habit (1)
    - HV5800-5840 Drug habits. Drug abuse (1)
    - HV6001-7220.5 Criminology (11)
      - HV6035-6197 Criminal anthropology Including criminal types, criminal psychology, prison psychology, causes of crime (8)
      - HV6251-6773.55 Crimes and offenses (3)
    - HV675-677 Accidents. Prevention of accidents (1)
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      - HV3176-3199 Special classes. By race or ethnic group (1)
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      - HV4701-4890.9 Protection of animals. Animal rights. Animal welfare (1)
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        HV1551-3024 People with disabilities Including blind, deaf, people with physical and mental disabilities (2)
    - HV7231-9960 Criminal justice administration (4)
      - HV7431 Prevention of crime, methods, etc. (1)
      - HV7551-8280.7 Police. Detectves. Constabulary (1)
- J Political Science (23)
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- K Law (64)
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    - KB400-4855 Interdisciplinary discussion of subjects (1)
      - KB3098-3121.7 Medical legislation (1)
- L Education (706)
  - L Education (General) (103)
  - LB Theory and practice of education (584)
    - LB1501 Primary Education (2)
    - LB1603 Secondary Education. High schools (7)
    - LB2300 Higher Education (87)
    - LB2361 Curriculum (281)
    - LB1025-1050.75 Teaching (Principles and practice) (46)
      - LB1032 Group work in education (1)
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    - LB1060 Learning (9)
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- M Music and Books on Music (1)
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- N Fine Arts (97)
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- Q Science (2364)
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        QA76.75-76.765 Computer software (217)
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- R Medicine (118)
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  - RA Public aspects of medicine (34)
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- T Technology (3603)
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  - TC Hydraulic engineering. Ocean engineering (5)
  - TD Environmental technology. Sanitary engineering (26)
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      - TD419-428 Water pollution (1)
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    - TD878-894 Special types of environment Including soil pollution, air pollution, noise pollution (4)
    - TD895-899 Industrial and factory sanitation (1)
  - TE Highway engineering. Roads and pavements (7)
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    - TE210-228.3 Construction details Including foundations, maintenance, equipment (4)
  - TH Building construction (7)
    - TH2025-3000 Details in building design and construction Including walls, roofs (1)
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    - TH9025-9745 Protection of buildings Including protection from dampness, fire, burglary (1)
  - TJ Mechanical Engineering and Machinery (119)
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    - TJ1480-1496 Agricultural machinery. Farm machinery (1)
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    - TJ163.26-163.5 Energy conservation (4)
    - TJ181-210 Mechanical movements (5)
    - TJ210.2-211.47 Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General) (22)
    - TJ212-225 Control engineering systems. Automatic machinery (General) (14)
    - TJ255-265 Heat engines (5)
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    - TJ807-830 Renewable energy sources (11)
    - TJ836-927 Hydraulic machinery (2)
  - TK Electrical engineering. Electronics Nuclear engineering (1165)
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    - TK3001-3521 Distribution or transmission of electric power (25)
    - TK301-399 Electric meters (2)
    - TK4001-4102 Applications of electric power (2)
    - TK4125-4399 Electric lighting (2)
    - TK452-454.4 Electric apparatus and materials. Electric circuits. Electric networks (8)
    - TK4601-4661 Electric heating (1)
    - TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television (512)
    - TK7800-8360 Electronics (390)
      - TK7871 Electronics--Materials (83)
      - TK7885-7895 Computer engineering. Computer hardware (27)
        TK7895.M4 Memory systems (8)
      - TK8300-8360 Photoelectronic devices (General) (29)
    - TK9001-9401 Nuclear engineering. Atomic power (3)
    - TK9900-9971 Electricity for amateurs. Amateur constructors' manuals (1)
  - TL Motor vehicles. Aeronautics. Astronautics (31)
    - TL1-484 Motor vehicles. Cycles (15)
    - TL500-777 Aeronautics. Aeronautical engineering (9)
    - TL787-4050 Astronautics. Space travel (1)
  - TN Mining engineering. Metallurgy (10)
    - TN263-271 Mineral deposits. Metallic ore deposits. Prospecting (2)
    - TN600-799 Metallurgy (7)
    - TN799.5-948 Nonmetallic minerals (1)
  - TP Chemical technology (42)
    - TP1080-1185 Polymers and polymer manufacture (7)
    - TP155-156 Chemical engineering (3)
    - TP200-248 Chemicals: Manufacture, use, etc. (4)
    - TP315-360 Fuel (2)
    - TP500-660 Fermentation industries. Beverages. Alcohol (1)
    - TP670-699 Oils, fats, and waxes (3)
      - TP690-692.5 Petroleum refining. Petroleum products (1)
    - TP785-869 Clay industries. Ceramics. Glass (1)
    - TP934-945 Paints, pigments, varnishes, etc. (1)
  - TR Photography (18)
    - TR250-265 Cameras (1)
    - TR624-835 Applied photography Including artistic, commercial, medical photography, photocopying processes (2)
    - TR845-899 Cinematography. Motion pictures (9)
  - TS Manufactures (46)
    - TS1300-1865 Textile industries (6)
    - TS155-194 Production management. Operations management (10)
    - TS1870-1935 Rubber industry (2)
    - TS200-770 Metal manufactures. Metalworking (5)
      - TS695 Chemical vapor deposition (1)
  - TT Handicrafts Arts and crafts (3)
    - TT205-267 Metalworking (1)
    - TT300-382.8 Painting. Wood finishing (1)
  - TX Home economics (24)
    - TX301-339 The house Including arrangement, care, servants (3)
    - TX341-641 Nutrition. Foods and food supply (1)
    - TX901-946.5 Hospitality industry. Hotels, clubs, restaurants, etc. Food service (1)
- U Military Science (1)
  - U Military Science (General) (1)
- Z Bibliography. Library Science. Information Resources (37)
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    - ZA4050-4775 Information in specific formats or media (10)
      - ZA4050-4480 Electronic information resources (3)
      - ZA4150-4380 Computer network resources (1)
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      - ZA4550-4575 Motion pictures. Video recordings (3)