Periodicals 56,856 Newspapers 16,146 Congresses 15,550 Biography 13,948 Textbooks 13,598 Sources 13,241 Catalogs 8,070 Statistics 7,606 Early works to 1800 7,070 Bibliography 6,362 Electronic books 6,006 Exhibitions 4,903 Dictionaries 4,096 Maps 4,026 Poetry 3,568 Fiction 2,787 Texts 2,639 Guidebooks 2,487 Drama 2,376 Directories 1,935 Handbooks, manuals, etc 1,795 Librettos 1,793 Pictorial works 1,598 Juvenile literature 1,402 Case studies 1,271 Commentaries 1,270 Cases 1,266 Indexes 1,183 Translations into English 1,110 Abstracts 1,043 Shi liao 1,018 Correspondence 1,016 Controversial literature 797 Classification 791 Trials, litigation, etc 767 Problems, exercises, etc 764 Périodiques 719 Laboratory manuals 623 Readers 615 Incunabula 570 Archives 544 Personal narratives 498 Treaties 498 Folklore 497 Glossaries, vocabularies, etc 497 Juvenile fiction 496 Portraits 489 Terminology 489 Textbooks for foreign speakers 481 Facsimiles 480 more ...