The Gutenberg Galaxy develops a mosaic or field approach to its problems. Such a mosaic image of numerous data and quotations in evidence offers the only practical means of revealing causal operations in history. The alternative procedure would be to offer a series of views of fixed relationships in pictorial space. Thus the galaxy or constellation of events upon which the present study concentrates is itself a mosaic of perpetually interacting forms that have undergone kaleidoscopic transformation— particularly in our own time. There might have been some advantage in substituting for the word “galaxy” the word “environment.” Any technology tends to create a new human environment. Script and papyrus created the social environment we think of in connection with