History 4,077 Maps 3,644 Electronic books 2,294 Early works to 1800 1,392 Congresses 1,262 Pictorial works 1,131 Periodicals 1,084 Biography 1,022 Conference papers and proceedings 989 Bibliography 964 Identification 781 Exhibitions 756 Guidebooks 727 Biographies 717 Catalogs 636 Fiction 625 Classification 621 Exhibition catalogs 544 Folklore 507 Criticism, interpretation, etc 495 Directories 494 Bibliographies 491 Field guides 476 Statistics 437 Sources 427 Early works 424 Dictionaries 368 Early maps 313 Illustrated works 277 Juvenile literature 271 Juvenile works 237 Legislative hearings 225 Documentary films 221 Internet videos 214 Poetry 209 Music 198 Handbooks, manuals, etc 195 Commercial treaties 167 Case studies 163 Facsimiles 147 Video recordings 145 Encyclopedias 144 Handbooks and manuals 118 Terminology 117 Atlases 113 Drama 113 Feature films 111 Ouvrages illustrés 110 Academic theses 108 Databases 107 Autobiographies 106 Nonfiction films 102 Indexes 99 Nomenclature 98 Government publications 95 Juvenile fiction 95 Art 94 Catalogs and collections 92 Diaries 90 Textbooks 89 Newspapers 86 Thematic maps 86 Interviews 82 Treaties 80 Video recordings for the hearing impaired 78 Romans, nouvelles, etc 77 Thèses et écrits académiques 76 Documentary television programs 75 Educational films 75 Novels 74 Church history 73 Electronic book 72 Anecdotes 70 Records and correspondence 70 Reference works 69 Correspondence 67 Directory 66 Portraits 66 Gazetteers 65 Historical fiction 65 Sound recordings 65 Tables 65 Catalogues 64 Legislative materials 64 Maps (documents) 63 Auction catalogs 62 Early Maps 62 Military history 62 Catalogues d'exposition 61 Cross-cultural studies 61 Aufsatzsammlung 59 Congrès 59 Pictorial maps 59 Congress 58 exhibition catalogs 58 Digital Maps 56 Specimens 56 map 56 Romans 55 Electronic journals 54