Disclaimer: I've met Jim Allen and had some email correspondence with him over the years. He was also the instructor for a good friends Land-Rover School trip in Colorado (approx.) 10 years ago.I'm an experienced off road driver (4-wheeler?). I bought the book because I knew that with Jim being the author, it would be useful and entertaining and I wanted to read what he had to say. I wasn't wrong. Coinciding with the arrival of this book was the (unexpected) purchase of a new rig--a modern Land Rover to complement my "old school" Series truck. This book definitely helped ease the transition between driving the modern "auto" Discovery and the old manual rig.I don't believe the purpose of the book is to tell you "what truck to buy" or "how to use a specific truck" and so I feel that the criticisms along those lines somewhat miss the mark. The book is intended to explain the "art and science" of offroad driving in general, to provide background information about the activity, and to outline expectations that you should have--and that others will have of you--while participating. I think it does a spectacular job of doing so. Jim's approach is thoughtful and friendly. The photos are (in many cases) worth the price of the book in and of themselves and the diagrams are clear and useful.My girlfriend, who is new to the activity, has placed this book on her bedside table and is also finding it very helpful. I think I'll be able to convince her to take the wheel of our new truck soon--much sooner than if she hadn't been able to read "how to" do it herself!This book has something to offer anyone who is interested in driving offroad and I would consider it a "must" for their bookshelves.