History 453 Bibliography 278 Books and reading 225 Books 174 Printing 142 Libraries 103 History and criticism 102 more ... Children's literature 93 Children 80 Classification 71 Publishers and publishing 68 Classification, Library of Congress 65 Book industries and trade 64 Academic libraries 62 English literature 48 Social aspects 47 Study and teaching 44 Censorship 43 Methodology 41 Type and type-founding 40 School libraries 39 Bookbinding 36 Activity programs 35 Children's libraries 35 Research 34 Information literacy 33 American literature 32 Biography 32 Book collecting 32 Publishing 31 less ...