This book is a fantastic resource. I initially purchased the Kindle version from Amazon while evaluating whether to purchase an IsoMax training device and then later purchased the paperback to make it easier to flip back and forth between the sections.
Part I ("The Science") convinced me that adding isometric training to my strength training routine would be a worthwhile pursuit. Part II ("The Technology") convinced me that I would enjoy adding the IsoMax to my training arsenal. The remainder of the book equipped me with the information I need both to make the most IsoMax training device and to be able to practice serious isometric training without it. That last bit is worth repeating: even if you never purchase an IsoChain or IsoMax, there are a lot of great isometric exercises and programs that can be accomplished without them. I'm very happy with this purchase.