Reading the book is all good and well, if Dickerson was just reviewing Edwards as a candidate. The thing is, he's reviewing a campaign commercial. Not everyone who will be viewing the commercial has read Edwards' book -- in fact, I'd be willing to bet most people who see this commercial do not know that Edwards wrote a book. Like Dikerson, most viewers will relate to the ad in terms of what they do know -- just like he pointed out in his article.