• 106 History
• 22 Management
• 21 African Americans
• 19 Politics and government
• 17 Physical geography
• 16 Natural resources
• 15 Economic conditions
• 15 Study and teaching
• 14 Antiquities
• 14 Leadership
• 13 Immigrants
• 12 Civil rights
• 12 Conservation of natural resources
• 12 Indians of North America
• 11 Civilization, Ancient
• 10 Civil rights movements
• 10 Social structure
• 10 United States
• 9 Culture
• 9 Hispanic Americans
• 9 Territorial expansion
• 9 World War, 1939-1945
• 8 Education
• 8 Environmental aspects
• 8 Ethnicity

• 309 Films Media Group
• 309 Films for the Humanities & Sciences (Firm)
• 118 Infobase
• 10 Alda, Alan, 1936-
• 3 Macaulay, David
• 1 Burns, Ken, 1953-
• 1 Cooper, Anderson
• 1 Gates, Henry Louis, Jr
• 1 Gazzaley, Adam
• 1 Pollan, Michael
• 1 Rushkoff, Douglas
• 1 Sagal, Peter

• 309 English

• 119 United States
• 11 North America
• 8 India
• 8 New York (N.Y.)
• 7 Asia
• 7 South Asia
• 7 West (U.S.)
• 5 New York
• 5 New York (State)
• 4 Australia
• 3 Latin America
• 3 Middle East
• 3 Mississippi
• 2 Alabama
• 2 America
• 2 California
• 2 Chicago
• 2 China
• 2 Earth (Planet)
• 2 Illinois
• 2 Jerusalem
• 2 Manhattan (New York, N.Y.)
• 2 Pakistan
• 2 Southeast Asia
• 1 Adirondack Mountains (N.Y.)

• 309 Internet videos
• 136 Video recordings for the hearing impaired
• 15 Case studies
• 7 Biography
• 2 Early works to 1800
• 1 Handbooks, manuals, etc
• 1 Personal narratives

Limit year range