I've been a student at Leadbetter Golf for the past 4 seasons now. So I've gotten to know Sean even though I work with another instructor. This book is a great overview of golf from head to toe. There are a lot of technical parts in it that's interesting to read about. And there's plenty of actionable, how-to material, too. My favorite part of the book was the interview with tour players who've worked with David, Sean, and Kevin.
I bought the book on kindle and saw the paperback version in a bookstore the other day. Definitely get the paperback version. It's a larger book that has lots of great color photos in it. The electronic version just doesn't do it as much justice.