Electronic books 2,596 History 1,233 Electronic book 218 Criticism, interpretation, etc 214 Case studies 175 Biography 138 Biographies 80 Congresses 80 Educational films 80 Internet videos 75 Videorecording 68 Conference papers and proceedings 65 Documentary films 51 Cross-cultural studies 26 Interviews 20 Sources 20 Television news programs 18 Aufsatzsammlung 12 Trials, litigation, etc 11 Nonfiction films 9 Documentary television programs 8 Feature films 8 Military history 8 Humor 7 Art 6 Filmed interviews 6 Livres électronique 6 Short films 6 Terminology 6 Church history 5 Encyclopedias 5 Blogs 4 Caricatures and cartoons 4 Computer network resources 4 Dictionaries 4 Environmental television programs 4 Exhibitions 4 Instructional films 4 Live-action/animation films 4 Livres électroniques 4 Livres numériques 4 Music 4 Statistics 4 Anecdotes 3 Biographical films 3 Comparative studies 3 Documentary 3 Educational television programs 3 Essays 3 Exhibition catalogs 3 Fiction 3 Handbooks and manuals 3 Handbooks, manuals, etc 3 In art 3 Kongress 3 Messages 3 Portraits 3 Television mini-series 3 Textbooks 3 Translations 3 videorecording 3 Art and the war 2 Bibliographies 2 Bibliography 2 Computer games 2 Congressen (vorm) 2 Correspondence 2 Drama 2 Festschriften 2 Film clips 2 Filmed performances 2 Genealogy 2 Inaugural addresses 2 Nonfiction television programs 2 Personal correspondence 2 Pictorial works 2 Rules 2 Streaming video 2 Texts 2 Translations into English 2 Trial and arbitral proceedings 2 Academic theses 1 Art and the coup d'état 1 Autobiographies 1 Biografieën (vorm) 1 Biographie 1 Cases 1 Catalogs 1 Census data 1 Census, 22nd, 2000 1 Comic books, strips, etc 1 Comparative Study 1 Congress 1 Constitutions 1 Counterfactual histories 1 Crítica e interpretación 1 Diaries 1 Discursive works 1 Documentary televison programs 1 Early works 1