History 4,063 Maps 3,648 Electronic books 2,477 Early works to 1800 1,403 Congresses 1,260 Pictorial works 1,127 Periodicals 1,084 Biography 1,020 Conference papers and proceedings 990 Bibliography 958 Identification 779 Exhibitions 752 Guidebooks 729 Biographies 709 Catalogs 637 Classification 623 Fiction 621 Exhibition catalogs 539 Folklore 509 Directories 495 Criticism, interpretation, etc 493 Bibliographies 492 Field guides 473 Statistics 437 Sources 428 Early works 421 Dictionaries 370 Early maps 313 Illustrated works 275 Juvenile literature 270 Juvenile works 232 Legislative hearings 225 Documentary films 221 Internet videos 213 Poetry 208 Music 198 Handbooks, manuals, etc 195 Commercial treaties 168 Case studies 162 Facsimiles 147 Video recordings 143 Encyclopedias 142 Handbooks and manuals 118 Terminology 117 Atlases 113 Drama 110 Feature films 109 Academic theses 108 Databases 107 Autobiographies 105 Ouvrages illustrés 104 Nonfiction films 102 Indexes 99 Nomenclature 98 Art 95 Government publications 94 Juvenile fiction 93 Catalogs and collections 92 Textbooks 89 Diaries 88 Newspapers 86 Thematic maps 86 Interviews 82 Treaties 80 Thèses et écrits académiques 76 Video recordings for the hearing impaired 76 Documentary television programs 75 Educational films 75 Church history 73 Electronic book 73 Novels 73 Anecdotes 71 Romans, nouvelles, etc 71 Records and correspondence 70 Reference works 69 Directory 67 Portraits 67 Catalogues 66 Correspondence 66 Gazetteers 66 Historical fiction 66 Sound recordings 65 Tables 65 Legislative materials 64 Maps (documents) 63 Auction catalogs 62 Cross-cultural studies 62 Early Maps 62 Military history 61 Catalogues d'exposition 60 Aufsatzsammlung 59 Congress 59 Pictorial maps 59 Congrès 58 exhibition catalogs 57 Digital Maps 56 Specimens 56 map 56 Romans 55 Glossaries, vocabularies, etc 54