SUBJECT
Electronic books
908
History
97
History and criticism
75
Social aspects
43
Research
29
Philosophy
26
Methodology
22
Economic aspects
18
Management
18
Political aspects
18
Study and teaching
18
English language
17
Information technology
17
Psychology
17
Education
16
Social life and customs
16
Technological innovations
16
Law and legislation
15
Climatic changes
14
Music
14
Public relations
14
Juvenile literature
13
Politics and government
13
Data processing
12
Environmental aspects
12
Food
12
American literature
11
Computer-assisted instruction
11
Criticism and interpretation
11
Economic conditions
11
Mass media
11
Social conditions
11
Theater
11
Educational technology
10
English literature
10
Globalization
10
Language and languages
10
Mathematics
10
Moral and ethical aspects
10
Women
10
Civilization
9
Culture
9
Ethnology
9
Internet
9
Prevention
9
Vocational guidance
9
Design
8
Economics
8
Libraries
8
Mathematical models
8
more ...