Henri Pène du Bois, Historical essay on the art of bookbinding… (1883)
“ The covers were originally of wood, ivory or metal, with a view to solidity only. It was a simple process, and yet there were then, as at present, good, bad and indifferent bookbinders, for, in one of his letters to Atticus, Cicero requested the assistance of two slaves, reputed skilled workmen (lignatores librorum) . At a time when the possession of a book was that of “a treasure for aye” it was natural that the art of its exterior decoration progressed as rapidly as the art of its interior decoration. ”
