History 12,317 Congresses 10,199 Conference papers and proceedings 7,049 Periodicals 6,068 Electronic books 5,738 Bibliography 3,180 Criticism, interpretation, etc 3,169 Biography 2,225 Bibliographies 1,292 Biographies 1,240 Sources 1,170 Case studies 1,158 Exhibitions 906 Statistics 903 Catalogs 898 Dictionaries 696 Interviews 672 Internet videos 617 Church history 616 Exhibition catalogs 603 Early works to 1800 598 Directories 582 Fiction 519 Sound recordings 510 Electronic journals 458 Popular music 403 Early works 400 Pictorial works 396 Congrès 370 Essays 336 Maps 324 Educational films 322 Early accounts to 1600 279 Classification 257 Aufsatzsammlung 252 Documentary films 248 Indexes 208 Songs 205 Conference papers and proceedings 198 Congress 196 Streaming audio 188 Academic theses 182 Périodiques 182 Festschriften 179 Drama 174 Music 174 Video recordings 170 Handbooks, manuals, etc 163 Poetry 161 Actes de congrès 157 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 121 bibliographie 116 bibliografía 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 Congrès 89 Handbooks and manuals 89 Folklore 87 Juvenile literature 87 Autobiographies 86 DVD-Video discs 83 Military history 83 Databases 82 proceedings (reports) 79 Translations 77 Diaries 76 Imprints 76 Readers 76 Bio-bibliography 75 Oral histories (literary works) 75 Expositions 73 dissertations 72 Novels 70 Oral histories 70 Illustrated works 69 graph 69 graphique 69 gráfico 69 Juvenile works 67