History 12,952 Congresses 6,562 Electronic books 5,953 Conference papers and proceedings 5,453 Periodicals 4,607 Maps 2,109 Biography 1,873 Early works to 1800 1,674 Bibliography 1,434 Internet videos 1,298 Biographies 1,196 Criticism, interpretation, etc 1,031 Catalogs 908 Case studies 888 Sources 884 Early works 861 Exhibitions 835 Dictionaries 738 Pictorial works 730 Statistics 729 Exhibition catalogs 694 Bibliographies 594 Fiction 530 Directories 517 Congrès 288 Military history 270 Electronic journals 266 Guidebooks 252 Church history 251 Personal narratives 238 Juvenile literature 229 Autobiographies 225 Conference papers and proceedings 221 Cross-cultural studies 218 Handbooks, manuals, etc 205 Documentary films 196 Congress 193 Feature films 190 Juvenile works 184 Aufsatzsammlung 183 Festschriften 181 Electronic book 180 Illustrated works 159 Correspondence 155 Early maps 153 Poetry 153 Diaries 152 Video recordings 142 Périodiques 132 Academic theses 127 Handbooks and manuals 127 Périodiques 122 Congrès 120 Classification 118 Drama 114 Indexes 111 Folklore 105 Expositions 104 Actes de congrès 99 Interviews 97 Travel literature 96 Encyclopedias 93 Art 90 Periodical 90 Études de cas 87 Sound recordings 83 Documentary television programs 82 Records and correspondence 81 Catalogues 80 Legislative hearings 80 Nonfiction films 80 Anecdotes 79 Translations 79 Ouvrages avant 1800 78 Travel writing 77 Personal correspondence 76 Facsimiles 73 Educational films 72 Ouvrages illustrés 72 Textbooks 72 Thèses et écrits académiques 72 Identification 70 Topographic maps 68 Tables 67 Music 66 Kongress 65 Physical maps 59 Aerial views 58 Databases 58 Novels 58 Thematic maps 57 bibliography 57 Atlases 56 Comic books, strips, etc 56 Photographs 55 Chronology 54 In art 54 Pictorial maps 54 reference 54 referencia 54