Before the printed book, Memory ruled daily life and the occult learning, and fully deserved the name later applied to printing, the "art preservative of all arts" (Ars artium omnium conservatrix). The Memory of individuals and of communities carried knowledge through time and space. For millennia personal Memory reigned over entertainment and information, over the perpetuation and perfection of crafts, the practice of commerce, the conduct of professions. By Memory and in Memory the...