Sources 167,068
History 117,388
Early works to 1800 103,779
Electronic books 63,644
Biography 48,845
Early works 42,065
Biographies 30,051
Periodicals 18,817
Criticism, interpretation, etc 13,085
Fiction 12,969
Broadsides 11,471
Bibliography 7,412
Catalogs 7,071
Trials, litigation, etc 6,855
Poetry 6,451
Print 6,397
Drama 5,652
Congresses 5,286
Instructional television programs 5,048
Correspondence 4,718
Autobiographies 4,598
Pictorial works 4,569
Portraits 4,504
Exhibitions 4,497
Church history 4,354
Conference papers and proceedings 4,345
Internet videos 4,109
Caricatures and cartoons 3,970
Dictionaries 3,664
Controversial literature 3,605
Bibliographies 3,519
Statistics 3,505
Pamphlets 3,328
Case studies 3,259
Directories 3,254
Sermons 3,239
Cases 3,084
Military history 3,079
Maps 3,047
Video recordings 2,955
Humor 2,787
Historical fiction 2,786
Exhibition catalogs 2,761
Handbooks and manuals 2,645
Naval history 2,621
Handbooks, manuals, etc 2,519
Records and correspondence 2,457
Personal narratives, British 2,422
Diaries 2,417
Personal correspondence 2,296
Anecdotes 2,277
Personal narratives 2,260
Newspapers 2,203
Feature films 2,164
Tracts (literary works) 2,058
Nonfiction television programs 1,963
Video recordings for the hearing impaired 1,891
Guidebooks 1,846
Registers 1,792
Documentary television programs 1,789
Advertisements 1,708
Specimens 1,683
Publishers' advertisements 1,626
Juvenile literature 1,497
Annotations (Provenance) 1,476
Novels 1,454
Letters 1,437
Genealogy 1,433
Treaties 1,400
Archives 1,379
Academic theses 1,356
Interviews 1,295
In art 1,263
Trial and arbitral proceedings 1,251
British 1,221
Poems 1,206
Indexes 1,196
Forms 1,129
Documentary films 1,091
Etchings 1,068
Ephemera 1,052
Engravings 1,051
Registers (Lists) 1,048
Film adaptations 1,025
Booksellers' advertisements 1,019
Thèses et écrits académiques 1,005
Juvenile works 991
collective biographies 988
Artists' books 967
Armorial bookplates (Provenance) 950
Tables 949
Illustrated works 941
Mystery fiction 941
Blank forms 916
Fiction films 908
Drawing 872
Satires (Visual works) 821
Wood engravings 810
Detective and mystery fiction 760
DVD-Video discs 745