I'm still trying to get my head around "Understanding Media." In fact, it comes to me in little bits, and it's phenomenal. We take media for granted, and probably can't fully appreciate how it completely distorts reality -- even something as simple as a photograph is completely out of context by its very nature and susceptible to being reinterpreted by its viewer(s) in ways that have little connection to the reality of the event it portrays. That sort of power is not to be abused...but alas...
Marshall MacLuhan was an almost unprecedented phenomenon—a hugely popular media star who was also a genius with traditional moral values. The only one of his kind in the postmodern world, unless maybe you turn to someone very different like Flannery O’Connor.
I’ve read several of his books and essays. That one is the most significant, but they’re all worth reading. And underneath it all is someone with very traditional religious views—but he managed to phrase them in such a way that the religion-hating intellectuals were taken in.