• 132 Videos, Slides, Films

• 40 History
• 16 Study and teaching
• 13 Natural resources
• 12 Conservation of natural resources
• 10 Sports
• 9 African Americans
• 8 Physical geography
• 8 Politics and government
• 8 Technology
• 7 Civilization, Ancient
• 7 Environmental policy
• 7 Political participation
• 7 Presidents
• 6 Christianity
• 6 Economic conditions
• 6 Environmental aspects
• 6 Environmental protection
• 6 Environmental sciences
• 6 Ethnicity
• 6 Government policy
• 6 Industrial applications
• 6 Labor
• 6 Local transit
• 6 Physics
• 6 Race discrimination

• 126 Films for the Humanities & Sciences (Firm)
• 11 Burns, Ken, 1953-
• 5 Macaulay, David
• 1 Gates, Henry Louis, Jr
• 1 Gazzaley, Adam
• 1 Pollan, Michael
• 1 Sagal, Peter

• 132 English

• 43 United States
• 7 India
• 7 South Asia
• 6 Asia
• 2 California
• 2 Europe
• 2 Jerusalem
• 2 Middle East
• 2 New York
• 2 New York (State)
• 1 Adirondack Mountains (N.Y.)
• 1 Alabama
• 1 Antarctica
• 1 Brazil
• 1 Connecticut
• 1 Eastern Front
• 1 France
• 1 Great Britain
• 1 Iceland
• 1 London (England)
• 1 Newtown
• 1 North America
• 1 Outer space
• 1 Portland (Or.)
• 1 Santa Clara Valley (Santa Clara County)

• 132 Internet videos
• 101 Videorecording
• 39 Video recordings for the hearing impaired
• 25 Video recording
• 5 Biography
• 2 Television adaptations
• 1 Case studies

Limit year range