History 12,316 Congresses 10,198 Conference papers and proceedings 7,048 Periodicals 6,068 Electronic books 5,827 Criticism, interpretation, etc 3,171 Bibliography 3,147 Biography 2,225 Bibliographies 1,292 Biographies 1,240 Sources 1,169 Case studies 1,158 Exhibitions 906 Statistics 903 Catalogs 898 Dictionaries 696 Interviews 671 Internet videos 617 Church history 616 Exhibition catalogs 603 Early works to 1800 599 Directories 582 Fiction 519 Sound recordings 510 Electronic journals 458 Popular music 403 Early works 400 Pictorial works 396 Congrès 368 Essays 335 Maps 324 Educational films 322 Early accounts to 1600 285 Classification 257 Aufsatzsammlung 252 Documentary films 248 Indexes 208 Songs 205 Conference papers and proceedings 198 Congress 197 Streaming audio 188 Academic theses 182 Périodiques 182 Festschriften 179 Drama 174 Music 174 Video recordings 170 Handbooks, manuals, etc 162 Poetry 161 Actes de congrès 158 Feature films 152 Correspondence 149 Encyclopedias 140 Cross-cultural studies 136 Anecdotes 128 Thèses et écrits académiques 128 Legislative hearings 127 reference 127 referencia 127 référence bibliographique 127 Périodiques 125 bibliography 120 bibliografía 115 bibliographie 115 Downloadable audio file 108 Textbooks 105 Nonfiction films 104 Electronic book 103 Periodical 103 In art 101 Scores 100 Facsimiles 99 Guidebooks 98 CD-ROMs 95 Études de cas 95 Poster 95 Handbooks and manuals 89 Congrès 88 Folklore 87 Juvenile literature 87 Autobiographies 86 DVD-Video discs 83 Military history 83 Databases 81 proceedings (reports) 79 Translations 77 Diaries 76 Imprints 76 Readers 76 Bio-bibliography 75 Oral histories (literary works) 75 Expositions 74 dissertations 72 Novels 70 Oral histories 70 Illustrated works 69 graph 69 graphique 69 gráfico 69 Juvenile works 67