Genre
Electronic books
623
Maps
315
Periodicals
201
Fiction
103
Statistics
103
Biography
91
Electronic journals
73
Databases
48
Case studies
38
Speeches in Congress
36
History
30
Geological maps
24
Guidebooks
21
Biographies
18
Congresses
18
Juvenile fiction
16
Newspapers
16
Juvenile literature
13
Observations
12
Pictorial works
12
Bathymetric maps
11
Anecdotes
10
Catalogs
10
Correspondence
10
Early works to 1800
9
Sources
9
Archives
8
Poetry
8
Identification
7
Interviews
7
Bibliography
6
Forms
6
Remote-sensing maps
6
Sermons
6
Diaries
5
Documentary films
5
Downloadable audio file
5
Handbooks, manuals, etc
5
Topographic maps
5
Charts, diagrams, etc
4
Directories
4
Electronic government information
4
Exhibitions
4
Juvenile works
4
Messages
4
Popular works
4
Remote-sensing images
4
Trials, litigation, etc
4
Western stories
4
American literature
3
more ...