Mark, all I know is it is an "insider" book on the GT40 development program. Pete Lyons, author of the excellent "Can Am" book, is one of the coauthors. If you go to Barnes & Noble's website--www.bn.com--and put the term "GT40" in the search box you will pull up several listings, one of which is this book. I preordered it about a month ago and so far it has not shipped. It may be one of those deals where it's not even published yet, and frankly when it is places like Amazon will probably have it for less, but like you I have a great deal of respect for Carroll Smith and went ahead and placed my order regardless. I'm sure it will make for fascinating reading.