History 1,981,446 Ver registros Biography 1,004,623 Ver registros Periodicals 661,539 Ver registros Maps 565,861 Ver registros Electronic books 542,273 Ver registros Biographies 540,067 Ver registros Sources 425,028 Ver registros Fiction 395,434 Ver registros Congresses 367,256 Ver registros Early works to 1800 335,700 Ver registros Statistics 272,131 Ver registros Criticism, interpretation, etc 267,609 Ver registros Conference papers and proceedings 256,413 Ver registros Private bills 223,883 Ver registros Catalogs 222,642 Ver registros Exhibitions 220,937 Ver registros Pictorial works 219,032 Ver registros Bibliography 187,759 Ver registros Exhibition catalogs 140,960 Ver registros Drama 138,103 Ver registros Early works 130,781 Ver registros Legislative bills 112,074 Ver registros Guidebooks 107,148 Ver registros Poetry 93,580 Ver registros Broadsides 92,234 Ver registros Dictionaries 85,074 Ver registros Directories 84,769 Ver registros Feature films 81,189 Ver registros Personal narratives 80,578 Ver registros Bibliographies 79,607 Ver registros Autobiographies 77,688 Ver registros Interviews 77,352 Ver registros Academic theses 75,722 Ver registros Case studies 72,975 Ver registros Correspondence 63,384 Ver registros Trials, litigation, etc 61,862 Ver registros Video recordings 61,127 Ver registros Church history 60,343 Ver registros Handbooks, manuals, etc 59,100 Ver registros Documentary films 57,882 Ver registros Thèses et écrits académiques 57,489 Ver registros Novels 54,909 Ver registros Internet videos 53,624 Ver registros Newspapers 52,921 Ver registros Photographs 51,073 Ver registros Genealogy 49,973 Ver registros DVD-Video discs 45,221 Ver registros Juvenile literature 44,696 Ver registros Anecdotes 44,600 Ver registros Sound recordings 41,987 Ver registros Legislative hearings 38,258 Ver registros Diaries 37,477 Ver registros Cases 36,305 Ver registros Illustrated works 36,253 Ver registros Specimens 36,252 Ver registros Designs and plans 36,086 Ver registros Military history 35,384 Ver registros Topographic maps 34,840 Ver registros Statutes and codes 33,787 Ver registros Texts 32,455 Ver registros Juvenile works 32,277 Ver registros Handbooks and manuals 31,587 Ver registros Sermons 31,176 Ver registros Portraits 30,817 Ver registros Printed ephemera 30,504 Ver registros Fiction films 30,234 Ver registros Music 29,122 Ver registros Academic Dissertation 28,883 Ver registros Video recordings for the hearing impaired 28,846 Ver registros dissertations 28,630 Ver registros Historical fiction 28,196 Ver registros Personal correspondence 27,151 Ver registros Records and correspondence 27,051 Ver registros Juvenile fiction 26,624 Ver registros Nonfiction films 26,369 Ver registros Songs and music 26,271 Ver registros In art 26,145 Ver registros theses 25,957 Ver registros doctoral dissertations 25,929 Ver registros masters theses 25,923 Ver registros Legislative materials 25,325 Ver registros Romans 24,506 Ver registros Comic books, strips, etc 23,974 Ver registros Romans, nouvelles, etc 23,797 Ver registros Folklore 23,664 Ver registros Indexes 23,302 Ver registros Controversial literature 20,826 Ver registros Caricatures and cartoons 20,801 Ver registros Facsimiles 20,647 Ver registros Festschriften 20,153 Ver registros Print 20,114 Ver registros Electronic journals 19,942 Ver registros Mystery fiction 19,933 Ver registros Registers 19,779 Ver registros Government publications 19,473 Ver registros Art 19,435 Ver registros Chronology 19,165 Ver registros Almanacs 19,001 Ver registros Posters 18,792 Ver registros Songs 18,241 Ver registros