It's important to review a book as significant as this, especially, as in my case, you bought and read it as a result of the reviews already here on Amazon (I followed the advice of a reviewer of one of the Ceasar Milan books, who said that this one was more sensible). It's a book to become evangelical about. Standby to have everything you knew from training class and other dog books, blown wide open - but before you run in horror, know that it's done with a blend of science and common sense. No metaphsical rubbish about "energy" or stroking your dog in a special magic pattern to cure all his problems. You'll read the information, feel your eyes opening wide, but then say to yourself "of course, my common sense should have told me that all the time." The book has a rather misleading title and cover picture, making it appear like some sort of coffee-table humorous book. It isn't, it's a serious academic work written in a very clear and readable style. Make your dog happy, read this book.