In the last twenty years of his life, Marshall McLuhan published a series of books that established his reputation as a world-renowned communications theorist and the pre-eminent seer of the modern age. It was McLuhan who made the distinction between "hot" and "cool" media. And it was he who coined the phrases "the medium is the message" and "the global village" and popularized other memorable terms including "feedback" and "iconic." McLuhan was far...