This is like one of those pretty-picture coffee table books that you see with all the models of Porsches in them, except this one focuses on the 911 engine. It's not a bad book - I enjoyed it - if you know what you are expecting. Don't expect it to tell you how to tear down and rebuild your engine (check out my upcoming book for that), but keep in mind that this is a photo book with a literal history of the development of the motor. It's a unique twist on the sometimes mundane cookie-cutter picture book. The text is a little dry at times, but not too difficult to read.