History 9,441 Sources 3,516 Electronic books 1,965 Early works to 1800 1,626 Fiction 1,433 Biography 1,022 Early works 739 Broadsides 716 Biographies 682 Records and correspondence 406 Bibliography 400 Juvenile literature 388 Genealogy 371 Historical fiction 369 Criticism, interpretation, etc 309 Maps 287 Printed ephemera 259 Poetry 248 Church history 239 Bibliographies 215 Diaries 199 Juvenile works 184 Periodicals 176 Military history 169 Drama 166 Correspondence 162 Account books 161 Poems 141 Juvenile fiction 136 Archives 128 Sermons 122 Catalogs 110 Letter books 107 Treaties 107 Historians 104 College presidents 103 Articles 101 Manuscripts for publication 101 Novels 101 Charters 100 Educational films 97 Ouvrages avant 1800 90 Personal correspondence 85 Newspapers 83 Registers 79 Dictionaries 78 Psychological fiction 78 Autobiographies 76 Personal narratives 73 Publishers' advertisements 73 Charters and articles of incorporation 71 Pictorial works 71 Congresses 69 Booksellers' advertisements 63 Exhibitions 61 Academic theses 57 Conference papers and proceedings 57 Textbooks 56 Deeds 53 Biographical fiction 52 Romans 52 Internet videos 51 Glossaries, vocabularies, etc 49 Film excerpts 48 Satires 43 Video recordings for the hearing impaired 43 Indexes 41 Portraits 41 Registers (Lists) 41 Humor 40 Captivity narratives 39 Romans, nouvelles, etc 38 Feature films 37 Songs and music 37 Exhibition catalogs 35 Advertisements 34 Invoices 34 Literature 34 Family histories 32 Publishers' cloth bindings (Binding) 32 Video recordings 32 Controversial literature 31 Electronic book 31 Tracts (literary works) 31 Association copies (Provenance) 30 Guidebooks 30 Literary collections 30 Pictorial cloth bindings (Binding) 30 Songs 30 Harvard graduates' papers 29 Playbills (Posters) 29 Trials, litigation, etc 29 Affiches de théâtre 28 Harvard students' papers 28 playbills 28 Anecdotes 27 Early accounts to 1600 27 Facsimiles 27 Ledgers (account books) 27 Subscribers' lists 27