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United States
198,816
Dissertations, Academic
138,576
China
65,955
Great Britain
59,388
Education
58,265
Agriculture
56,673
France
56,320
Japan
48,546
World War, 1939-1945
47,746
Women
44,383
Bible
44,213
Germany
38,138
Soviet Union
37,267
Catholic Church
35,952
English language
35,015
India
32,944
Art
30,731
World War, 1914-1918
30,494
Europe
30,023
Jews
28,636
Music
28,161
Law
27,335
Mexico
26,632
Science
26,355
Architecture
26,084
Geology
25,824
Academic theses
25,802
Spain
25,151
Italy
23,658
English
4,896,573
German
827,007
French
672,547
Spanish
623,150
Russian
312,024
Chinese
275,920
Italian
251,292
Japanese
246,302
Portuguese
139,856
Arabic
137,913
Latin
118,873
No linguistic content
79,591
Polish
68,348
Dutch
65,134
Hebrew
61,091
Undetermined
46,456
Swedish
43,013
Indonesian
39,409
Hindi
38,930
Korean
35,146
Czech
34,501
Danish
34,289
Turkish
28,657
Thai
28,347
Urdu
27,380
Hungarian
25,018
Croatian
23,693
Persian
23,520
Norwegian
21,706
Ukrainian
18,232
United States
3,054,417
United Kingdom
733,074
England
684,807
Germany
662,754
France
494,965
Italy
258,191
Japan
248,738
India
226,066
Spain
187,819
China
187,511
Russia (Federation)
183,696
Canada
145,081
Netherlands
105,595
Brazil
96,889
Mexico
94,467
Switzerland
89,316
Argentina
82,140
Soviet Socialist Republic
75,033
Poland
71,969
China (Republic : 1949- )
70,924
Austria
61,224
Russian S.F.S.R.
57,308
Sweden
53,572
Egypt
50,690
Israel
49,980
Indonesia
46,195
Belgium
44,599
Denmark
39,539
Australia
39,089
1980-1989
1,231,311
1990-1999
1,169,911
1970-1979
1,081,629
1960-1969
899,712
2000-2009
835,634
1950-1959
518,757
1900-1909
494,681
1910-1919
418,714
1920-1929
352,284
1940-1949
338,071
1930-1939
333,666
1890-1899
302,732
1880-1889
230,362
1870-1879
177,051
1860-1869
157,664
1990
140,892
1900
140,480
1989
131,015
1850-1859
129,439
1988
127,619
1985
127,157
1980
126,358
1986
124,254
1987
123,992
1984
123,733
1992
123,468
1991
123,428
1983
120,038
1993
117,956
1994
115,573
Book
8,653,981
Serial
490,082
Journal
416,439
Biography
395,683
Conference
289,035
Music
178,219
Musical Score
178,079
Manuscript
168,718
Statistics
138,012
Dictionaries
78,684
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
2,989,602
University of California
2,577,302
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
55,041
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