Genre
Electronic books
633
Early works to 1800
228
Biography
187
Periodicals
149
Pre-Linnean works
87
Documentary television programs
84
Pictorial works
83
Juvenile literature
56
Guidebooks
53
Nature television programs
52
Outdoor books
43
Science television programs
41
Documentary films
30
Electronic book
27
Electronic journals
25
Libros electronicos
22
Nonfiction television programs
20
Poetry
18
Diaries
17
Anecdotes
15
Bibliography
11
Popular works
11
Catalogs
10
Congresses
10
Correspondence
10
Identification
10
Wildlife television programs
10
DVD-Video discs
8
Early accounts to 1600
8
Reviews
8
Statistics, Vital
8
Catalogs and collections
7
Classification
7
Miscellanea
7
Early works to 1900
6
History
6
Essays
5
Fiction
5
Juvenile fiction
5
Maps
5
Dictionaries
4
Encyclopedias
4
Folklore
4
Illustrated works
4
Letters
4
Literary collections
4
Travelogues (Television programs)
4
Video recordings for the hearing impaired
4
Biographies
3
Exhibitions
3
more ...