LIBRARY OF CONGRESS CLASSIFICATION OUTLINE

CLASS H - SOCIAL SCIENCES

(Click each subclass for details)

Subclass H Social sciences (General)

Subclass HA Statistics

Subclass HB Economic theory. Demography

Subclass HC Economic history and conditions

Subclass HD Industries. Land use. Labor

Subclass HE Transportation and communications

Subclass HF Commerce

Subclass HG Finance

Subclass HJ Public finance

Subclass HM Sociology (General)

Subclass HN Social history and conditions. Social problems. Social

reform

Subclass HQ The family. Marriage. Women

Subclass HS Societies: secret, benevolent, etc.

Subclass HT Communities. Classes. Races

Subclass HV Social pathology. Social and public welfare. Criminology

Subclass HX Socialism. Communism. Anarchism
Subclass H

H1-99 Social sciences (General)
Subclass HA

HA1-4737 Statistics

HA29-32 Theory and method of social science statistics

HA36-37 Statistical services. Statistical bureaus

HA38-39 Registration of vital events. Vital

records

HA154-4737 Statistical data

HA154-155 Universal statistics

HA175-473 By region or country
Subclass HB

HB1-3840 Economic theory. Demography

HB71-74 Economics as a science. Relation to other 

subjects

HB75-130 History of economics. History of economic 

theory

Including special economic schools

HB131-147 Methodology

HB135-147 Mathematical economics. Quantitative methods

Including econometrics, input-output

analysis, game theory

HB201-206 Value. Utility

HB221-236 Price

HB238-251 Competition. Production. Wealth

HB501 Capital. Capitalism

HB522-715 Income. Factor shares

HB535-551 Interest

HB601 Profit

HB615-715 Entrepreneurship. Risk and uncertainty.

Property

HB801-843 Consumption. Demand

HB846-846.8 Welfare theory

HB848-3697 Demography. Population. Vital events

HB3711-3840 Business cycles. Economic fluctuations
Subclass HC

HC10-1085 Economic history and conditions

HC79 Special topics

Including air pollution, automation, 

consumer demand, famines, flow of funds, 

etc.

HC92 Economic geography of the oceans (General)

HC94-1085 By region or country
Subclass HD

HD28-9999 Industries. Land use. Labor

HD28-70 Management. Industrial management

HD39-40.7 Capital. Capital investments

HD41 Competition

HD45-45.2 Technological innovations. Automation

HD47-47.4 Costs

HD49-49.5 Crisis management. Emergency management.

Inflation

HD50-50.5 Delegation of authority. Decentralization.

Span of control

HD56-57.5 Industrial productivity

HD58 Location of industry

HD58.7-58.95 Organizational behavior, change and

effectiveness. Corporate culture

HD59-59.6 Public relations. Industrial publicity

HD60-60.5 Social responsibility of business

HD61 Risk in industry. Risk management

HD62 Standardization. Simplification. Waste

HD62.2-62.8 Management of special enterprises

HD66-66.2 Work groups. Team work in industry.

Quality circles

HD69 Other

Including business consultants, 

capacity, size of industries, etc.

HD72-88 Economic growth, development, planning

HD101-1395.5 Land use

Land tenure

HD1286-1289 Communal ownership

HD1290-1291 Municipal ownership

HD1301-1313 Nationalization (Agrarian socialism)

HD1326-1329 Large holdings

HD1330-1331 Landlord and peasant

HD1332-1333.5 Land reform. Agrarian reform

HD1334-1335 Consolidation of land holdings

HD1336-1339 Small holdings. Peasant proprietors.

Parcellation

HD1361-1395.5 Real estate business

HD1401-2210 Agriculture

HD1428-1431 International cooperation

HD1470-1476 Size of farms

HD1478 Sharecropping

HD1483-1486 Agricultural associations, societies, etc.

HD1491-1491.5 Cooperative agriculture

HD1492-1492.5 Collective farms

HD1493-1493.5 Government owned and operated farms. State

farms. Sovkhozes

HD1501-1542 Agricultural classes

Including farm tenancy, agricultural 

laborers
HD1549 Gleaning

HD1580 Reclamation of agricultural land. Melioration

HD1635-1702 Utilization and culture of special classes of

lands

Including pasture lands, water resources

development

HD1711-1741 Irrigation

HD2321-4730.9 Industry

HD2329 Industrialization

HD2330 Rural industries

HD2331-2336 Home labor. Home-based businesses

HD2337-2339 Sweatshops

HD2340.8-2346.5 Small and medium-sized businesses, artisans, 

handicrafts, trades

HD2350.8-2356 Large industry. Factory system. Big business

HD2365-2385 Contracting. Letting of contracts

HD2421-2429 Trade associations

HD2709-2930.7 Corporations

Including international business enterprises, diversification, industrial

concentration, public utilities

HD2951-3575 Cooperation. Cooperative societies

HD3611-4730.9 Industrial policy. The state and industrial 

organization

Including licensing of occupations and

professions, subsidies, inspection,

government ownership, municipal 

services

HD4801-8943 Labor. Work. Working class

HD4861-4895 Labor systems

HD4909-5100.9 Wages

HD5106-5267 Hours of labor

Including overtime, shift work, sick

leave, vacations

HD5306-5474 Labor disputes. Strikes and lockouts

HD5481-5630.7 Industrial arbitration. Mediation and 

conciliation

HD5650-5660 Employee participation in management. 

Employee ownership. Industrial democracy.

Works councils

HD5701-6000.9 Labor market. Labor supply. Labor demand

Including unemployment, manpower policy,

occupational training, employment

agencies

HD6050-6305 Classes of labor

Including women, children, students, 

middle-aged and older persons, 

minorities

HD6350-6940.7 Trade unions. Labor unions. Workers'

associations

HD6941-6948 Employers' associations
HD6951-6957 Industrial sociology. Social conditions of 

labor

HD6958.5-6976 Industrial relations

HD6977-7080 Cost and standard of living

HD7088-7252 Social insurance. Social security. Pension

HD7255-7256 Vocational rehabilitation. Employment of

people with disabilities

HD7260-7780.8 Industrial hygiene. Industrial welfare

HD7795-8027 Labor policy. Labor and the state

HD8031 Labor in politics. Political activity of the

working class

HD8038 Professions (General). Professional employees

HD8039 By industry or trade

HD8045-8943 By region or country

HD9000-9999 Special industries and trades

HD9000-9495 Agricultural industries

HD9502-9502.5 Energy industries. Energy policy. Fuel trade

HD9506-9624 Mineral industries. Metal trade

HD9650-9663 Chemical industries

HD9665-9675 Pharmaceutical industry

HD9680-9714 Mechanical industries

Including electric utilities, electronic 

industries, and machinery

HD9715-9717.5 Construction industry

HD9720-9975 Manufacturing industries

HD9999 Miscellaneous industries and trades
Subclass HE

HE1-9990 Transportation and communications

HE199-199.5 Freight (General)

HE199.9 Passenger traffic (General)

HE305-311 Urban transportation

HE323-328 Transportation geography. Trade routes

HE331-380 Traffic engineering. Roads and highways. 

Streets

HE369-373 Traffic surveys (General)

HE374-377 Bridges

HE379-380 Tunnels. Vehicular tunnels

HE380.8-971 Water transportation

HE380.8-560 Waterways

HE561-971 Shipping

HE730-943 Merchant marine. Ocean shipping. Coastwise

shipping

HE1001-5600 Railroads. Rapid transit systems

HE5601-5725 Automotive transportation

Including trucking, bus lines, and

taxicab service

HE5746-5749 Stage lines

HE5751-5870 Ferries

HE5880-5990 Express service

HE6000-7500 Postal service. Stamps. Philately

HE7511-7549 Pneumatic service

HE7601-8700.9 Telecommunication industry. Telegraph

HE8660-8688 Wireless telegraph. Radiotelegraphy

HE8689-8700.95 Radio and television broadcasting

HE8701-9680.7 Telephone industry

HE9713-9715 Cellular telephone services industry. Wireless 

telephone industry

HE9719-9721 Artificial satellite telecommunications

HE9723-9737 Signaling

HE9751-9756 Messenger service

HE9761-9900 Air transportation. Airlines
Subclass HF

HF1-6182 Commerce

HF294-343 Boards of trade. Chambers of commerce.

Merchants' associations

HF1014 Balance of trade

HF1021-1027 Commercial geography. Economic geography

HF1040-1054 Commodities. Commercial products

HF1701-2701 Tariff. Free trade. Protectionism

HF3000-4055 By region or country

HF5001-6182 Business

HF5381-5386 Vocational guidance. Career devlopment

HF5387-5387.5 Business ethics

HF5410-5417.5 Marketing. Distribution of products

HF5419-5422 Wholesale trade

HF5428-5429.6 Retail trade

HF5429.7-5430.6 Shopping centers. Shopping malls

HF5437-5444 Purchasing. Selling. Sales personnel. Sales 

executives

HF5446-5459 Canvassing. Peddling

HF5460-5469.5 Department stores. Mail order business.

Supermarkets. Convenience stores

HF5469.7-5481 Markets. Fairs

HF5482-5482.4 Secondhand trade

HF5482.6-5482.65 Black market

HF5484-5495 Warehouses. Storage

HF5520-5541 Office equipment and supplies

HF5546-5548.6 Office management

HF5548.7-5548.85 Industrial psychology

HF5549-5549.5 Personnel management. Employment 

management

HF5601-5689 Accounting. Bookkeeping

HF5691-5716 Business mathematics. Commercial arithmetic

Including tables, etc.

HF5717-5734.7 Business communication

Including business report writing, 

business correspondence

HF5735-5746 Business records management

HF5761-5780 Shipment of goods. Delivery of goods

HF5801-6182 Advertising
Subclass HG

HG1-9999 Finance

HG178 Liquidity

HG179 Personal finance

HG201-1496 Money

HG258-312 Precious metals. Bullion

HG315 Small coins

HG321-329 Mints. Assaying

HG335-339 Counterfeiting

HG348-353.5 Paper money

HG361-363 Legal tender

HG381-395 International coinage

HG401-421 Bimetallism

HG451-1496 By region or country

HG1501-3550 Banking

HG1621-1638 Interest rates. Interest tables

HG1641-1643 Bank loans. Bank credit. Commercial loans

HG1651-1654 Discount

HG1655 Acceptances

HG1656 Bank reserves. Bank liquidity. Loan loss 

reserves

HG1660 Bank accounts. Bank deposits. Deposit 

banking

HG1662 Insurance of deposits. Deposit insurance

HG1685-1704 Drafts. Checks

HG1706-1708 Accounting. Bookkeeping

HG1709 Data processing

HG1710-1710.5 Electronic funds transfers

HG1722 Bank mergers

HG1723 Bank stocks. Banking as an investment

HG1725-1778 Banks and the state. State supervision of

banks

HG1811-2351 Special classes of banks and financial

institutions

HG2397-3550 By region or country

HG3691-3769 Credit. Debt. Loans

Including credit institutions, credit

instruments, consumer credit, bankruptcy

HG3810-4000 Foreign exchange. International finance.

International monetary system

HG4001-4285 Finance management. Business finance.

Corporation finance

HG4301-4480.9 Trust services. Trust companies

HG4501-6051 Investment, capital formation, speculation

HG4530 Investment companies. Investment trusts. 

Mutual funds

HG4538 Foreign investments

HG4551-4598 Stock exchanges

HG4621 Stockbrokers. Security dealers. Investment 
advisers

HG4701-4751 Government securities. Industrial securities.

Venture capital

HG4900-5993 By region or country

HG6001-6051 Speculation

HG6105-6270.9 Lotteries

HG8011-9999 Insurance

HG8053.5-8054.45 Insurance for professions. Malpractice

insurance. Professional liability insurance

HG8059 Business insurance

HG8075-8107 Insurance business. Insurance management

HG8111-8123 Government policy. State supervision

HG8205-8220 Government insurance

HG8501-8745 By region or country

HG8751-9295 Life insurance

HG8779-8793 Actuarial science. Statistical theory and

methodology applied to insurance

HG8799-8830 By class insured, by risk, by plan

HG8835-8899 Life insurance business. Management

HG8901-8914 Government policy. State supervision

HG8941-9200.5 By region or country

HG9201-9245 Mutual life insurance. Assessment life

insurance. Fraternal life insurance

HG9251-9262 Industrial life insurance

HG9271 Child insurance. Life insurance for

children

HG9291-9295 Maternity insurance

HG9301-9343 Accident insurance

HG9371-9399 Health insurance

HG9651-9899 Fire insurance

HG9956-9969 Casualty insurance

HG9969.5-9999 Other insurance

Including automobile, burglary, credit,

disaster, title insurance
Subclass HJ

HJ9-9940 Public finance

HJ9-99.8 Periodicals. Serials. By region or country

HJ210-240 History

HJ241-1620 By region or country

HJ2005-2216 Income and expenditure. Budget

HJ2240-5908 Revenue. Taxation. Internal revenue

HJ2321-2323 Tax incidence. Tax shifting. Tax equity

HJ2326-2327 Progressive taxation

HJ2336-2337 Tax exemption

HJ2338 Taxation of government property

HJ2351 Inflation and taxation

HJ2351.4 Tax revenue estimating

HJ2361-3192.7 By region or country 

HJ3801-3844 Revenue from sources other than taxation

HJ3863-3925 Direct taxation

HJ4113-4601 Property tax

HJ4629-4830 Income tax

HJ4919-4936 Capitation. Poll tax

HJ5309-5510 Administrative fees. User charges. 

License fees

HJ6603-7390 Customs administration

HJ7461-7980 Expenditures. Government spending

HJ8001-8899 Public debts

HJ8052 Sinking funds. Amortization

HJ8101-8899 By region or country

HJ9103-9695 Local finance. Municipal finance

Including the revenue, budget, expenditure, 

etc. of counties, boroughs, communes, 

municipalities, etc.

HJ9701-9940 Public accounting. Auditing
Subclass HM

HM(1)-1281 Sociology

(HM1-299) These are obsolete numbers no longer used

by the Library of Congress

HM435-477 History of sociology. History of sociological

theory

HM461-473 Schools of sociology. Schools of social thought

HM481-554 Theory. Method. Relations to other subjects

HM621-656 Culture

HM661-696 Social control

HM701 Social systems

HM706 Social structure

HM711-806 Groups and organizations

HM756-781 Community

HM786-806 Organizational sociology. Organization theory

HM811-821 Deviant behavior. Social deviance

HM826 Social institutions

HM831-901 Social change

HM1001-1281 Social psychology

HM1041-1101 Social perception. Social cognition

Including perception of the self and

others, prejudices, stereotype

HM1106-1171 Interpersonal relations. Social behavior

HM1176-1281 Social influence. Social pressure
Subclass HN

HN1-995 Social history and conditions. Social problems.

Social reform

HN30-39 The church and social problems

HN41-46 Community centers. Social centers

HN50-995 By region or country
Subclass HQ

HQ1-2044 The Family. Marriage. Women

HQ12-449 Sexual life

HQ19-30.7 Sexual behavior and attitudes. Sexuality

HQ31-64 Sex instruction and sexual ethics

HQ71-72 Sexual deviations

HQ74-74.2 Bisexuality

HQ75-76.8 Homosexuality. Lesbianism

HQ77-77.2 Transvestism

HQ77.7-77.95 Transexualism

HQ79 Sadism. Masochism. Fetishism, etc.

HQ101-440.7 Prostitution

HQ447 Masturbation

HQ449 Emasculation. Eunuchs, etc.

HQ450-472 Erotica

HQ503-1064 The family. Marriage. Home

HQ750-755.5 Eugenics

HQ755.7-759.92 Parents. Parenthood

Including parent and child, husbands,

fathers, wives, mothers

HQ760-767.7 Family size

HQ767.8-792.2 Children. Child development

Including child rearing, child life,

play, socialization, children's rights

HQ793-799.2 Youth. Adolescents. Teenagers

HQ799.5-799.9 Young men and women

HQ799.95-799.97 Adulthood

HQ800-800.4 Single people

HQ801-801.83 Man-woman relationships. Courtship. Dating

HQ802 Matrimonial bureaus. Marriage brokerage

HQ802.5 Matrimonial advertisements

HQ803 Temporary marriage. Trial marriage.

Companionate marriage

HQ804 Breach of promise

HQ805 Desertion

HQ806 Adultery

HQ811-960.7 Divorce

HQ961-967 Free love

HQ981-996 Polygamy

HQ997 Polyandry

HQ998-999 Illegitimacy. Unmarried mothers

HQ1001-1006 The state and marriage

HQ1051-1057 The church and marriage

HQ1058-1058.5 Widows and widowers. Widowhood

HQ1060-1064 Aged. Gerontology (Social aspects). 

Retirement

HQ1073-1073.5 Thanatology. Death. Dying

HQ1075-1075.5 Sex role

HQ1088-1090.7 Men

HQ1101-2030.7 Women. Feminism
HQ1871-2030.7 Women's clubs

HQ2035-2039 Life skills. Coping skills. Everyday living 

skills

HQ2042-2044 Life style
Subclass HS

HS1-3371 Societies: secret, benevolent, etc.

HS101-330.7 Secret societies

HS351-929 Freemasons

HS951-1179 Odd Fellows

HS1201-1350 Knights of Pythias

HS1355 Other societies

HS1501-2460.7 Other societies. By classes

HS1501-1510 Benevolent and "friendly" societies and

mutual assessment fraternities

HS1525-1560 Religious societies

HS1601-2265 Race societies

HS2275 Occupation societies

HS2301-2460.7 Political and "patriotic" societies

HS2501-3371 Clubs. Clubs and societies for special classes

Including boys' societies, Boy scouts,

girls' societies
Subclass HT

HT51-1595 Communities. Classes. Races

HT51-65 Human settlements. Communities

HT101-395 Urban groups. The city. Urban sociology

HT161-165 Garden cities. "The city beautiful"

HT165.5-169.9 City planning

HT170-178 Urban renewal. Urban redevelopment

HT201-221 City population

Including children in cities, immigration

HT231 Effect of city life

HT251-265 Mental and moral life

HT281 Recreation. Amusements

HT321-325 The city as an economic factor. City 

promotion

HT330-334 Metropolitan areas

HT351-352 Suburban cities and towns

HT361-384 Urbanization. City and country

HT388 Regional economics. Space in economics

HT390-395 Regional planning

HT401-485 Rural groups. Rural sociology

HT601-1445 Classes

HT621-635 Origin of social classes

HT641-657 Classes arising from birth

Including royalty, nobility, commons

HT675-690 Classes arising from occupation

HT713-725 Caste system

HT731 Freedmen

HT751-815 Serfdom

HT851-1445 Slavery

HT1501-1595 Races

Including race as a social group and race

relations in general
Subclass HV

HV1-9960 Social pathology. Social and public welfare.

Criminology

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

HV85-525 By region or country

HV530 The church and charity

HV541 Women and charity

HV544 Charity fairs, bazaars, etc.

HV544.5 International social work

HV547 Self-help groups

HV551.2-639 Emergency management

HV553-639 Relief in case of disasters

HV560-583 Red Cross. Red Crescent

HV599-639 Special types of disasters

HV640-645 Refugee problems

HV650-670 Life saving

HV675-677 Accidents. Prevention of accidents

HV680-696 Free professional services

Including medical charities

HV697-4959 Protection, assistance and relief

HV697-3024 Special classes

HV697-700.7 Families. Mothers. Widow's pensions

HV701-1420.5 Children

HV835-847 Foundlings

HV873-887 Destitute, neglected, and abandoned

children. Street children

HV888-907 Children with disabilities

HV931-941 Fresh-air funds

HV959-1420.5 Orphanages. Orphans

HV1421-1441 Young adults. Youth. Teenagers

HV1442-1448 Women

HV1449 Gay men. Lesbians

HV1450-1494 Aged

HV1551-3024 People with disabilities

Including blind, deaf, people with

physical and mental disabilities

HV3025-3174 Special classes. By occupation

HV3025-3163 Mariners

HV3165-3173 Shop women, clerks, etc.

HV3174 Other. By occupation

HV3176-3199 Special classes. By race or ethnic group

HV4005-4013 Immigrants

HV4023-4470.7 Poor in cities. Slums

HV4480-4630 Mendicancy. Vagabondism. Tramps. 

Homelessness

HV4701-4890.9 Protection of animals. Animal rights. Animal
welfare

HV4905-4959 Animal experimentation. Anti-vivisection

HV4961-4995 Degeneration

HV5001-5720.5 Alcoholism. Intemperance. Temperance reform

HV5725-5770 Tobacco habit

HV5800-5840 Drug habits. Drug abuse

HV6001-7220.5 Criminology

HV6035-6197 Criminal anthropology

Including criminal types, criminal

psychology, prison psychology, causes

of crime

HV6201-6249 Criminal classes

HV6250-6250.4 Victims of crimes. Victimology

HV6251-6773.55 Crimes and offenses

HV6774-7220.5 Crimes and criminal classes

HV7231-9960 Criminal justice administration

HV7428 Social work with delinquents and criminals

HV7431 Prevention of crime, methods, etc.

HV7435-7439 Gun control

HV7551-8280.7 Police. Detectives. Constabulary

HV7935-8025 Administration and organization

HV8031-8080 Police duty. Methods of protection

HV8035-8069 Special classes of crimes, offenses

and criminals

HV8073-8079.35 Investigation of crimes. Examination

and identification of prisoners

HV8079.2-8079.35 Police social work

HV8079.5-8079.55 Traffic control. Traffic accident

investigation

HV8081-8099 Private detectives. Detective bureaus

HV8130-8280.7 By region or country

HV8290-8291 Private security services

HV8301-9920.7 Penology. Prisons. Corrections

HV9051-9230.7 The juvenile offender. Juvenile delinquency.

Reform schools, etc.

HV9261-9430.7 Reformation and reclamation of adult 

prisoners

HV9441-9920.7 By region or country

HV9950-9960 By region or country
Subclass HX

HX1-970.7 Socialism. Communism. Anarchism

HX519-550 Communism/socialism in relation to special 

topics

HX626-696 Communism: Utopian socialism, collective

settlements

HX806-811 Utopias. The ideal state

HX821-970.9 Anarchism