This is an extremely difficult book to review. Though a layman in this field, fortunately, I have researched quantum mechanics and read enough books over the last few years on the subject to do a reasonably informed job of covering the salient points:<br>1) I have no doubt the author feels he has attempted to construct this book in  a manner that can be understood fairly easily by many.  Not to be insulting to anyone, but this book is definitely not for the novice.<br>2) Even with some background in quantum theory, there are many portions of the dialog that went way over my head, as I suspect, it will for many.<br>3) If you are an average reader interested in quantum physics, I have found several other books that cover this suject in a more readily understandable way. I suggest Machio Kaku or Bernard Haisch.<br>4) If you are a science student - college level or above, this book could be very insightful and of value for you.<br><br>So why Four Stars??? While the ultimate value of this book will be determined by each individual reader, it is critically important that a more widespread understanding of the scientific importance of quantum mechanics is shared by a larger audience. This book contributes to that cause and contains valuable information.