bReviewsb pNo one understood causality, whether Aristotelian or electric, like Marshall McLuhan. Now, ini Media and Formal Causei, no one reveals understanding of iformal icause in the digital environment better than McLuhan's prot g son, Eric. In the foreword, Lance Strate writes that M. McLuhan's iUnderstanding Mediai was one of the most important books of the 20th century. For anyone who wishes to understand how things truly work, iMedia and Formal Causei is one of the most important books of the 21st. Arguably formal cause has been the least understood but the most intellectually important of all of Aristotle's four agents or processes of causation. Thisi small ivolume proffers a ilarge iunderstanding of this iformiative, previously mysterious level of invisible creation. Three essays by Marshall one with co-author Barry Nevitt and a powerful new essay by Eric give new meaning toi ye olde clich i, like father, like son. While reading writing that is engaging, encyclopedic, and ele