Genre
Maps
876
Topographic maps
120
Periodicals
88
Statistics
81
Legislative materials
79
Legislative hearings
75
Bibliographies
60
Technical reports
54
Databases
48
Statutes and codes
23
Electronic government information
22
Biographies
20
Environmental impact statements
19
Handbooks and manuals
19
Road maps
18
Catalogs
17
Conference papers and proceedings
17
Posters
15
Geological maps
14
Illustrated works
12
Video recordings
12
Atlases
11
Case studies
11
Autobiographies
10
Guidebooks
10
Fiction
9
Gazetteers
9
Graphs
9
Tourist maps
9
Academic theses
8
Dictionaries
8
Indexes
7
Internet videos
7
Congresses
6
Exhibition catalogs
6
Picture books
6
Pictures
6
Serial publications
6
Diaries
5
Drama
5
Observations
5
Remote-sensing maps
5
Television comedies
5
Video recordings for the hearing impaired
5
Annual reports
4
Board books
4
Census data
4
Charts, diagrams, etc
4
Drawings
4
Personal narratives
4
more ...