Genre
Congresses
1,847
Electronic books
1,833
Conference papers and proceedings
1,542
Handbooks, manuals, etc
1,337
Handbooks and manuals
1,230
Periodicals
1,142
History
932
Catalogs
524
Specifications
364
Amateurs' manuals
342
Designs and plans
329
Dictionaries
321
Pictorial works
281
Early works to 1800
232
Architectural drawings
219
Case studies
196
Technical reports
195
Trade catalogs
192
Drawings
180
Statistics
165
Directories
159
Manufacturers' catalogs
152
Tables
138
Biography
123
Guides, manuels, etc
111
Guides et manuels
99
Early works
96
Exhibitions
96
Juvenile literature
91
Illustrated works
84
Electronic journals
77
Bibliography
74
Biographies
74
Exhibition catalogs
71
Congrès
68
Congrès
61
handbooks
59
Study guides
57
Video recordings
52
Printed ephemera
51
Tables (Data)
49
Handbook
45
Government publications
44
Academic theses
42
Bibliographies
41
Périodiques
41
Autobiographies
37
Electronic book
36
Périodiques
35
manuals (instructional materials)
35
more ...