Mine is obviously a dissenting opinion, but I vehemently disliked this little book. As one of the previous reviewers so aptly pointed out, it is not about selling, it is about personal motivation. If you need somebody to tell you the obvious things you need to do to be a successful sales person, then this book may help you. But if you're interested in learning about the sales process, there's just not much here.
The bombastic and cutesy writing quality is a big put-off for me, from the numbered lists that all end in ".5" to the use of semi-outrageous language. The author warns his readers that, "This book contains language used by real people used <sic> in real situations in sales." I don't know what crowd he is selling to, but I have been in sales for thirty-five years and I don't recall anyone ever using the word "puke" in a business conversation. The author must really like that word, as he overuses it throughout the book.
My biggest disappointment was that he actually hooked me in the introduction with the concept that we really should be studying how customers buy rather than how salesmen sell. That seemed like a clever and viable to way look at the selling/buying process, but there was unfortunately no follow up on that idea throughout the remainder of the book.
If you're trying to pump yourself up or have work ethic issues, then maybe it's worth the purchase, but if you appreciate good writing and thoughtful analysis, don't waste your twenty bucks.