Libraries 563 Publishers and publishing 349 Information services 338 Library resources 238 Directories 203 Periodicals 189 Booksellers and bookselling 185 more ... Book industries and trade 179 History 163 Bibliography 152 Archival resources 134 Répertoires 127 Special libraries 123 Bibliothèques 107 Societies, etc 105 Publishing 96 Web sites 96 Archives 79 Librarians 78 Databases 76 Information storage and retrieval systems 72 Library science 71 Computer network resources 69 Internet addresses 68 American periodicals 67 Antiquarian booksellers 67 American newspapers 61 Services d'information 61 Study and teaching 55 Fonds documentaires 54 less ...