• 479 Videos, Slides, Films

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

• 354 Films for the Humanities & Sciences (Firm)
• 164 Infobase
• 32 Burns, Ken, 1953-
• 10 Alda, Alan, 1936-
• 6 Eagleman, David
• 5 Macaulay, David
• 4 Sanjayan, M. A., 1966-
• 1 Cooper, Anderson
• 1 David McCullough
• 1 Gates, Henry Louis, Jr
• 1 Gazzaley, Adam
• 1 Pollan, Michael
• 1 Rushkoff, Douglas
• 1 Sagal, Peter
• 1 Tyson, Neil deGrasse

• 479 English

• 176 United States
• 12 North America
• 9 India
• 8 New York (N.Y.)
• 7 Asia
• 7 South Asia
• 7 West (U.S.)
• 6 New York
• 6 New York (State)
• 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
• 2 Earth (Planet)

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