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United States
198,813
Dissertations, Academic
138,574
China
65,955
Great Britain
59,387
Education
58,265
Agriculture
56,669
France
56,319
Japan
48,546
World War, 1939-1945
47,746
Women
44,383
Bible
44,213
Germany
38,137
Soviet Union
37,264
Catholic Church
35,952
English language
35,012
India
32,943
Art
30,731
World War, 1914-1918
30,494
Europe
30,023
Jews
28,636
Music
28,158
Law
27,335
Mexico
26,632
Science
26,351
Architecture
26,084
Geology
25,821
Academic theses
25,764
Spain
25,151
Italy
23,658
English
4,896,404
German
826,970
French
672,509
Spanish
623,140
Russian
312,002
Chinese
275,919
Italian
251,282
Japanese
246,276
Portuguese
139,851
Arabic
137,913
Latin
118,872
No linguistic content
79,590
Polish
68,344
Dutch
65,131
Hebrew
61,089
Undetermined
46,455
Swedish
43,013
Indonesian
39,409
Hindi
38,929
Korean
35,146
Czech
34,499
Danish
34,288
Turkish
28,657
Thai
28,347
Urdu
27,380
Hungarian
25,018
Croatian
23,693
Persian
23,520
Norwegian
21,705
Ukrainian
18,229
United States
3,054,326
United Kingdom
733,059
England
684,793
Germany
662,719
France
494,931
Italy
258,181
Japan
248,710
India
226,060
Spain
187,817
China
187,510
Russia (Federation)
183,679
Canada
145,079
Netherlands
105,591
Brazil
96,887
Mexico
94,467
Switzerland
89,315
Argentina
82,137
Soviet Socialist Republic
75,033
Poland
71,964
China (Republic : 1949- )
70,924
Austria
61,222
Russian S.F.S.R.
57,308
Sweden
53,571
Egypt
50,690
Israel
49,978
Indonesia
46,195
Belgium
44,598
Denmark
39,538
Australia
39,089
1980-1989
1,231,304
1990-1999
1,169,908
1970-1979
1,081,622
1960-1969
899,655
2000-2009
835,634
1950-1959
518,644
1900-1909
494,653
1910-1919
418,714
1920-1929
352,266
1940-1949
338,017
1930-1939
333,631
1890-1899
302,730
1880-1889
230,362
1870-1879
177,051
1860-1869
157,664
1990
140,892
1900
140,453
1989
131,015
1850-1859
129,439
1988
127,618
1985
127,155
1980
126,358
1986
124,253
1987
123,992
1984
123,732
1992
123,468
1991
123,428
1983
120,037
1993
117,956
1994
115,571
Book
8,653,707
Serial
490,026
Journal
416,388
Biography
395,676
Conference
289,023
Music
178,219
Musical Score
178,079
Manuscript
168,678
Statistics
138,011
Dictionaries
78,681
Directories
43,178
Microform
40,475
Encyclopedias
14,052
Maps-Atlas
3,632
Map
3,554
Archive
3,394
CDROM
2,055
Mixed Material
1,607
Newspaper
1,209
Audio CD
962
Visual Material
484
Video (DVD)
379
Audio
140
Audio (music)
110
Data File
75
Audio LP
74
Video (VHS)
33
University of Michigan
2,989,601
University of California
2,577,287
Harvard University
605,073
University of Virginia
385,004
The University of Texas
379,696
Indiana University
376,090
Cornell University
351,966
University of Minnesota
289,938
New York Public Library
268,899
Pennsylvania State University
244,379
The Ohio State University
157,766
Princeton University
135,100
Northwestern University
123,520
Library of Congress
101,736
Columbia University
91,219
University of Chicago
77,530
University of Alberta
72,226
Michigan State University
58,421
Purdue University
55,038
University of Iowa
49,832
Getty Research Institute
43,984
Keio University 慶應義塾大学
37,739
Rutgers University
28,508
Minnesota Digital Library
21,218