SUBJECT
Electronic books
History
61
Social aspects
11
History and criticism
5
Environmentalism
4
Social conditions
4
Technological innovations
4
Environmental policy
3
Mass media
3
Motion pictures
3
Music
3
Race relations
3
Research
3
United States
3
Women and literature
3
Advertising campaigns
2
Civil War, 1861-1865
2
Clothing and dress
2
Computer industry
2
Computer science
2
Criticism and interpretation
2
Culture in motion pictures
2
Economic aspects
2
Electric utilities
2
Engineering
2
Fashion
2
Historical films
2
In motion pictures
2
International Business Machines Corporation
2
Marketing
2
Mathematics
2
Motion picture industry
2
Objectivism (Philosophy)
2
Philosophy
2
Philosophy in literature
2
Political aspects
2
Popular music
2
Religious aspects
2
Social life and customs
2
Stage history
2
Study and teaching
2
Theater
2
Theater and society
2
Theater and the war
2
Action and adventure television programs
1
Aesthetics
1
Aesthetics in literature
1
African American Mormons
1
African Americans
1
Air warfare
1
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