Ong’s Ramus , it will be possible to use these three great studies to give an entirely new understanding of the events that make up the Gutenberg galaxy. As might be expected, the printed book was a long time in being recognized as anything but a typescript, a more accessible and portable kind of manuscript. It is this kind of transitional awareness that in our own century is recorded in words and phrases such as “horseless carriage,” “wireless,” or “moving-pictures.” “Telegraph” and “television” seem to have registered a more direct impact than mechanical forms such as typography and movies. Yet it would have been just as difficult to explain the Gutenberg innovation to a man in the sixteenth century as it is now to explain the utter diversity of TV and film images. Today we like to think that there is much in common between the mosaic image of television and the pictorial space of the photograph. In fact, they have nothing in common. Neither did