History 1,976,178 Ver registros Biography 1,004,015 Ver registros Periodicals 661,441 Ver registros Maps 565,756 Ver registros Electronic books 541,840 Ver registros Biographies 538,429 Ver registros Sources 424,544 Ver registros Fiction 394,975 Ver registros Congresses 367,143 Ver registros Early works to 1800 335,608 Ver registros Statistics 272,106 Ver registros Criticism, interpretation, etc 266,950 Ver registros Conference papers and proceedings 256,291 Ver registros Private bills 223,883 Ver registros Catalogs 222,559 Ver registros Exhibitions 220,849 Ver registros Pictorial works 218,915 Ver registros Bibliography 187,668 Ver registros Exhibition catalogs 140,821 Ver registros Drama 138,053 Ver registros Early works 130,623 Ver registros Legislative bills 112,074 Ver registros Guidebooks 107,108 Ver registros Poetry 93,493 Ver registros Broadsides 92,233 Ver registros Dictionaries 85,019 Ver registros Directories 84,764 Ver registros Feature films 81,171 Ver registros Personal narratives 80,526 Ver registros Bibliographies 79,329 Ver registros Autobiographies 77,540 Ver registros Interviews 77,317 Ver registros Academic theses 75,561 Ver registros Case studies 72,946 Ver registros Correspondence 63,370 Ver registros Trials, litigation, etc 61,840 Ver registros Video recordings 61,127 Ver registros Church history 60,302 Ver registros Handbooks, manuals, etc 59,080 Ver registros Documentary films 57,858 Ver registros Thèses et écrits académiques 57,313 Ver registros Novels 54,848 Ver registros Internet videos 53,623 Ver registros Newspapers 52,914 Ver registros Photographs 51,070 Ver registros Genealogy 49,961 Ver registros DVD-Video discs 45,218 Ver registros Juvenile literature 44,684 Ver registros Anecdotes 44,504 Ver registros Sound recordings 41,983 Ver registros Legislative hearings 38,256 Ver registros Diaries 37,455 Ver registros Cases 36,297 Ver registros Specimens 36,238 Ver registros Illustrated works 36,230 Ver registros Designs and plans 36,077 Ver registros Military history 35,315 Ver registros Topographic maps 34,826 Ver registros Statutes and codes 33,786 Ver registros Texts 32,437 Ver registros Juvenile works 32,235 Ver registros Handbooks and manuals 31,558 Ver registros Sermons 31,175 Ver registros Portraits 30,812 Ver registros Printed ephemera 30,504 Ver registros Fiction films 30,225 Ver registros Music 29,118 Ver registros Video recordings for the hearing impaired 28,834 Ver registros Academic Dissertation 28,808 Ver registros dissertations 28,509 Ver registros Historical fiction 28,183 Ver registros Personal correspondence 27,083 Ver registros Records and correspondence 27,049 Ver registros Juvenile fiction 26,601 Ver registros Nonfiction films 26,359 Ver registros Songs and music 26,251 Ver registros In art 26,128 Ver registros theses 25,954 Ver registros doctoral dissertations 25,926 Ver registros masters theses 25,920 Ver registros Legislative materials 25,325 Ver registros Comic books, strips, etc 23,956 Ver registros Romans 23,855 Ver registros Romans, nouvelles, etc 23,712 Ver registros Folklore 23,644 Ver registros Indexes 23,287 Ver registros Controversial literature 20,826 Ver registros Caricatures and cartoons 20,798 Ver registros Facsimiles 20,633 Ver registros Print 20,114 Ver registros Festschriften 20,097 Ver registros Electronic journals 19,939 Ver registros Mystery fiction 19,930 Ver registros Registers 19,774 Ver registros Government publications 19,459 Ver registros Art 19,407 Ver registros Chronology 19,125 Ver registros Almanacs 19,000 Ver registros Posters 18,791 Ver registros Songs 18,235 Ver registros