Books History 514 Printing 219 Conservation and restoration 194 Classification 169 Bookbinding 146 Book industries and trade 95 mer ... Books and reading 83 Livres 71 Bibliography 66 Manuscripts 66 Libraries 58 Prices 57 Exhibitions 52 Manuscripts, Medieval 48 Classification, Library of Congress 45 Histoire 41 Book design 39 Paper 39 Book collecting 38 Publishers and publishing 38 Library materials 37 Repairing 35 Preservation 33 Rare books 30 Social aspects 30 Cataloging 28 Format 20 Intellectual life 19 Imprimerie 18 mindre ...