Absolutely superb, an excellent book in every respect. Casual enough for the coffee table, detailed enough for reference and involving enough for extended browsing. This book is for everyone, whether student, scholar or layman.
First of all this is a book illustrated throughout on every page and the illustrations are all superb. In terms of presenting the subject matter in a digestible fashion to the reader, this is a huge benefit exceedingly well executed. And yet there is no detail overlooked or applied without commensurate explanation.
The breadth of the material included is equally impressive, no stone is left unturned, from the nature of mass and the constituent parts of atoms, gravity, radiation, particle physics, the fundamentals of the Universe, the formation of the Solar System, the orbit, atmosphere and tectonics of the planets, the history of space exploration and the birth of astronomy, the formation of stars, the position of the constellations and the nature of the stars that form them, it's all here. Even the size of the book is spot on, not too large to be unwieldy and not too small to cramp the illustrations.
It's not Roger Penrose and nor should it be, but it is a very great deal more considered than one might initially assume it may be. This books title is exactly what it is, and it is extremely well done.
For any teenager with an inquiring mind it would make a wonderful educational tool and for any adult stargazer a valuable reference. Something to return to again and again, which will always impart the same pleasure. For the uninterested browser it will even be a revelation. Such is the measure of how well the content is presented.