As to the question of whether or not these are truly the best 100 album covers of all time, I really can't say. In fact, in that regard I think the title is misleading because it forces the reader into thinking this is some type of a ranking or countdown. In fact, it is nothing of the sort. This is simply a really cool collection of 100 great album covers and their history. And, in that respect, this book really delivers.
Buy it today. I promise you, it will never get dull.
As an art book, this book is a joke. I have many coffee-table and art books, and "100 Best Album Covers" is the only one I have that centers some featured graphics in the CENTER of the book. By that, I mean that a picture is centered in a two page spread, which runs the spine of the book right down the middle of the picture. All of the other art books I have put a graphic on one page so that you can see it (unless it's oversized). The pictures here aren't oversized and would easily fit on one page. It's hard to appreciate even a nifty album cover when you can only see the outer edges of it clearly. Far too many of the album covers are centered on the spine this way. The emphasis in this book is on the commentary it seems, and not so much the picture. Emerson Lake & Palmer's "Brain Salad Surgery" (an impressive work by the famous artist Giger) isn't quite as breathtaking when you have to pry and bend the book open and crack the spine to see it.
The publishers should revise this book and reissue it.