Žanr
Electronic books
104
Biography
56
Early works to 1800
50
Pictorial works
17
Documentary television programs
16
Diaries
10
Pre-Linnean works
9
Reviews
8
Statistics, Vital
8
Travelogues (Television programs)
6
Correspondence
5
Electronic book
5
Documentary films
4
Wildlife television programs
4
Maps
3
Nature television programs
3
Congresses
2
Fiction
2
Glossaries, vocabularies, etc
2
Literary collections
2
Miscellanea
2
Nonfiction television programs
2
Anecdotes
1
Artists' books
1
Artists' books, American
1
Bibliography
1
Biographical television programs
1
Case studies
1
Early
1
Early accounts to 1600
1
Environmental films
1
Exhibitions
1
Guidebooks
1
History
1
Identification
1
Letters
1
Periodicals
1
Poetry
1
Records and correspondence
1
Sources
1
Surveys
1
Travel writing
1
Videocassettes
1