• 49 Videos, Slides, Films

• 22 History
• 16 Study and teaching
• 10 Sports
• 7 Industrial applications
• 7 Technology
• 6 Economic conditions
• 6 Environmental sciences
• 5 Immigrants
• 5 Industries
• 5 Labor
• 4 Mechanical engineering
• 3 Branding (Marketing)
• 3 Consumer behavior
• 3 Depressions
• 3 Engineering
• 3 Indians of North America
• 3 Operations research
• 3 Politics and government
• 3 Science
• 3 Vocational guidance
• 2 Antiques
• 2 Architecture, Ancient
• 2 Architecture, Medieval
• 2 Arts and crafts movement
• 2 British literature

• 49 Films Media Group
• 49 Films for the Humanities & Sciences (Firm)
• 26 Public Broadcasting Service (U.S.)
• 13 Arts and Entertainment Network
• 11 Burns, Ken, 1953-
• 3 4 Learning (Firm)
• 3 Meridian Education Corporation
• 2 Macaulay, David
• 1 A&E Television Networks, LLC
• 1 BBC Worldwide Ltd
• 1 Learning Zone Express (Firm)
• 1 Video Education Australasia

• 49 English

• 19 United States
• 3 Europe
• 1 Antietam (Md.)
• 1 North America

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