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Enjoyable Reading It has been over 20 years since my college physics class. The world of physicists have not stopped discovering and Greene makes a reasonable effort to explain these advances in non-mathematic terminology. His style is quite readable, though at times trite. Certainly, the many references to the Simpsons, Star Trek and X-Files confirm his status as a geek. I found his review of physics (from Newton to Einstein) valuable. I admit that his explanation of multidimensional m-theory looses me at a certain point, but I assume that some of these ideas are best experienced as mathematic entities. It is hard to visualize 10 dimensions! I don't know of any contemporary physicist who has come close to explaining cosmology in such an accessible manner. E.g., Greene makes Sagan look infantile in his accomplishments. I would recommend this book to anyone with a college level background- it will be to abstract for most others. PhDs in physics will be better served reading the original scientific literature. I thought this book was better than his first book, since it dealt with a broader subject. Finally, while I have no idea if Greene is really an important scientist in his field, he is certainly an accomplished communicator and writer and his students are undoubtedly lucky to have him.