I don't agree with Ken at all. OK so the book is short, but do all books have to be 500 page blockbusters? It is printed with large print and wide (not double) spacing, making it a joy to read. The 'illustrations' are incredible full colour graphics. The graphic showing the earth spiraling into the sun might, perhaps, have been left out, but most other graphics are far from trivial and really add to the text. For instance, the electron interference graphic/picture will make you think you've been teleported to CERN. Kemp's review is much fairer. I have a physics degree and read through this book quickly, without having to re-read anything. OK, you might say, you have a physics degree. But I stumble in other 'popular' books - I'm having to reread(even rewrite!) Polkinghorne's 'very short introduction to Quantum Physics' to get anywhere at all! I would have no hesitation in buying this book as a great Xmas present for a 14 or 70 year old who wanted to know something about physics.