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Library of Congress Subject Areas (24611)
- A General Works (3)
  - AM Museums. Collectors and collecting (1)
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- B Philosophy. Psychology. Religion (782)
  - B Philosophy (General) (9)
  - BD Speculative philosophy (1)
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  - BF Psychology (311)
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- C Auxiliary Sciences of History (25)
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- G Geography. Anthropology. Recreation (1617)
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        GV199.8-200.35 Mountaineering (4)
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- H Social Sciences (3767)
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  - HB Economic theory. Demography (322)
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  - HC Economic history and conditions (164)
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      - HC79 Special topics Including air pollution, automation, consumer demand, famines, flow of funds, etc. (4)
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  - HD Industries. Land use. Labor (814)
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        HD1361-1395.5 Real estate business (2)
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        HD1635-1702 Utilization and culture of special classes of lands Including pasture lands, water resources development (1)
      - HD2321-4730.9 Industry (4)
        HD2340.8-2346.5 Small and medium-sized businesses, artisans, handicrafts, trades (4)
      - HD2350.8-2356 Large industry. Factory system. Big business (16)
        HD2951-3575 Cooperation. Cooperative societies (16)
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        HD50-50.5 Delegation of authority. Decentralization. Span of control (1)
        HD58.7-58.95 Organizational behavior, change and effectiveness. Corporate culture (388)
        HD61 Risk in industry. Risk management (19)
        HD66-66.2 Work groups. Team work in industry. Quality circles (11)
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        HD4861-4895 Labor systems (1)
        HD5106-5267 Hours of labor Including overtime, shift work, sick leave, vacations (2)
        HD5650-5660 Employee participation in management. Employee ownership. Industrial democracy. Works councils (1)
        HD5701-6000.9 Labor market. Labor supply. Labor demand Including unemployment, manpower policy, occupational training, employment agencies (75)
        HD6050-6305 Classes of labor Including women, children, students, middle-aged and older persons, minorities (1)
        HD6350-6940.7 Trade unions. Labor unions. Workers' associations (16)
        HD6977-7080 Cost and standard of living (4)
        HD7088-7252 Social insurance. Social security. Pension (2)
        HD7260-7780.8 Industrial hygiene. Industrial welfare (6)
        HD8038 Professions (General). Professional employees (2)
      - HD9000-9999 Special industries and trades (11)
        HD9000-9495 Agricultural industries (9)
        HD9720-9975 Manufacturing industries (2)
  - HE Transportation and Communications (54)
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      - HE199.9 Passenger traffic (General) (1)
      - HE7601-8700.9 Telecommunication industry. Telegraph (3)
        HE8689-8700.95 Radio and television broadcasting (2)
      - HE9713-9715 Cellular telephone services industry. Wireless telephone industry (4)
  - HF Commerce (527)
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      - HF5001-6182 Business (30)
        HF5387-5387.5 Business ethics (2)
        HF5410-5417.5 Marketing. Distribution of products (12)
        HF5428-5429.6 Retail trade (1)
        HF5469.7-5481 Markets. Fairs (2)
        HF5546-5548.6 Office management (2)
        HF5549-5549.5 Personnel management. Employment management (9)
    - HF5601 Accounting (32)
  - HG Finance (287)
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  - HM Sociology (General) (112)
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        HM1106-1171 Interpersonal relations. Social behavior (2)
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  - HN Social history and conditions. Social problems. Social reform (95)
  - HQ The family. Marriage. Woman (137)
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        HQ793-799.2 Youth. Adolescents. Teenagers (1)
        HQ799.5-799.9 Young men and women (1)
  - HS Societies: secret, benevolent, etc. (3)
  - HT Communities. Classes. Races (614)
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      - HT101-395 Urban groups. The city. Urban sociology (8)
        HT165.5-169.9 City planning (4)
        HT361-384 Urbanization. City and country (1)
      - HT1501-1595 Races: Including race as a social group and race relations in general (8)
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      - HT51-65 Human settlements. Communities (6)
      - HT601-1445 Classes (4)
        HT621-635 Origin of social classes (3)
        HT851-1445 Slavery (1)
  - HV Social pathology. Social and public welfare. Criminology (240)
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      - HV40-69 Social service. Social work. Charity organization and practice Including social case work, private and public relief, institutional care, rural social work, work relief (1)
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        HV7551-8280.7 Police. Detectives. Constabulary (7)
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- J Political Science (187)
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