• 158 History
• 43 Politics and government
• 33 African Americans
• 25 Study and teaching
• 22 Management
• 21 Economic conditions
• 18 Immigrants
• 18 Physical geography
• 17 Presidents
• 17 Social aspects
• 17 Technology
• 16 Depressions
• 16 History and criticism
• 16 Natural resources
• 15 Antiquities
• 15 Indians of North America
• 14 Leadership
• 13 Civil rights
• 13 World War, 1939-1945
• 12 Conservation of natural resources
• 12 Social life and customs
• 12 United States
• 11 Civilization, Ancient
• 11 Labor
• 11 Politicians

• 479 Films Media Group
• 354 Films for the Humanities & Sciences (Firm)
• 164 Infobase
• 32 Burns, Ken, 1953-
• 10 Alda, Alan, 1936-
• 10 Alexander Street Press
• 6 Eagleman, David
• 6 MacNeil/Lehrer Productions
• 5 Gates, Henry Louis, Jr.
• 5 Inkwell Films (Firm)
• 5 Kunhardt Films (Firm)
• 5 Macaulay, David
• 5 McGee Media (Firm)
• 5 Nutopia (Firm)
• 4 Sanjayan, M. A., 1966-
• 2 Bates, Martin
• 2 California Newsreel (Firm)
• 2 Independent Television Service
• 2 McGann, Karen
• 2 Quinn, Virginia
• 2 Simon, Joanna, 1940-
• 2 Zane, Arnie, 1948-1988
• 1 America's River Communities, Inc.
• 1 Ark Media (Firm)

• 499 English

• 181 United States
• 12 North America
• 9 India
• 8 New York (N.Y.)
• 8 New York (State)
• 7 Asia
• 7 New York
• 7 South Asia
• 7 West (U.S.)
• 6 Africa
• 4 Australia
• 4 Middle East
• 4 Syria
• 3 Alabama
• 3 Chicago
• 3 China
• 3 Europe
• 3 Great Britain
• 3 Illinois
• 3 Latin America
• 3 Mississippi
• 3 Pennsylvania
• 3 Philadelphia
• 2 America
• 2 California

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