I'm torn on this. Let's start with the cover. It could be said that having two versions of the book, each with a different cover depending on which twin you end up with, is artistic. Since I am in the marketing business, I'll put that down to marketing - an attempt to make enthusiasts and collectors buy 2 copies (it works by the way, just look at the sales of magazine that do the same thing).
On the one hand this book contains some good insight into scions of the fashion world, but on the other hand it is yet another example of the efficient and admirable marketing machine that is the Olsen twins... yet it has very little of any substance that is built on their abilities or talent, and you start to wonder if they have any, other than the fact that they were born twins and cute. Without question they know how to market themselves and their product, and for that you have to admire them and their success, but when they stand next to the subjects of their interviews, what becomes very apparent is that they are not in that same class from an artistic and raw talent perspective, even though they are financially more successful than most of them. I think what the twins have managed to expose in this book is that they find themselves in a very privileged and fortunate position of power in the fashion industry because they have declared fashion their creative outlet through their Elizabeth & James line. They have access that many less fortunate, but far more talented purveyors of the craft, would kill for and as such they are able to parlay that into a book that seeks to elevate their credibility through association. Again, I give them credit in the marketing department for recognizing that their cutesy tween image is long past due and this book could give them a stepping stone to longer term credibility in an adjacent field to their acting alma mater.
Sure, the book will appeal to Olsen twin fans (and there are many of those), but it never really reveals anything about them and what they are going to do with the position of privilege and access that they have been given. So, they have received the "Influence" of an impressive cadre of iconoclasts, but now what are they going to do with it? This really should be categorized as a brand marketing text book rather than a coffee table fashion book.
All that being said, the book is interesting and worth a read, but there are many other books I'd spend the money on before this if I had a real interest in various aspects of fashion and those who define it. For Olsen twin fans, just buy it, and it probably won't disappoint.