For the non-professional like me, this is a fascinating book about contemporary issues in particle physics, string theory and cosmology. It is a personal view about the issues and the people from one of the top guns in theoretical physics. It is well written and non-technical, in parts even humorous, the main requirement for the reader being a curious mind.
Even though I consider this an outstanding book, it still has its ups and downs. I especially enjoyed the part about the properties of elementary paticles, which I have not seen explained in this manner elsewhere. More of this, please, now that CERN is up and running! The most important insight was why many physicists have been forced to swallow the anthropic principle and the many worlds view. I had some trouble reading through the part about string theory: there seems to be too many possibilities. If there are no limits to what the strings can look like, maybe some of them even look like me! After reading the book, I came out feeling that there is a stong case for string theory and the anthropic principle but it is also easy to symphatize with the critics like Smolin. I hope physicists do not get lost exploring the properties of the endless landscape.