Genre
Legislative hearings
11,357
Legislative materials
7,155
Bibliographies
7,092
Statistics
6,159
Periodicals
5,308
Maps
5,128
Technical reports
4,854
Handbooks and manuals
2,590
Treaties
2,231
Statutes and codes
1,944
Conference papers and proceedings
1,459
Topographic maps
1,117
Electronic government information
571
Databases
469
Case studies
382
Census data
251
Video recordings
244
Directories
239
Vital statistics
232
Biographies
224
Road maps
222
Environmental impact statements
202
Catalogs
200
Pictures
185
Internet videos
182
Trivia and miscellanea
177
Dictionaries
165
Congresses
140
Posters
132
Remote-sensing maps
130
Indexes
129
Activity books
122
Geological maps
119
Guidebooks
109
Annual reports
108
Remote-sensing images
105
Classification
102
Tables (Data)
100
Atlases
96
Personal correspondence
96
Illustrated works
95
Bathymetric maps
85
Surveys
85
Records (Documents)
81
Examinations
79
Literature
75
Graphs
63
Blank forms
58
Documentary films
55
Registers (Lists)
54
more ...