Brian Greene is one of the leading physicists in cosmology and String theory. He explained the most difficult theories of Einstein relativity, string theory and multiverses in a very simple words. He drew many day to day examples to explain difficult concepts, like space curvature and many others, till we not only understand it but feel it.<br>The String Theory is very difficult to understand since it tries to bridge the gap between macrocosm and the microcosm of the quantum physics. Greene made it very accessible to us. Still String theory is not complete and conclusive, it is work in progress. The way it is explained made me convinced that it is the ultimate theory which Einstein was looking for.<br>The scope of the book is huge, many technical terms, a lot of detailed notes and detailed history of the beginning of the theory tens of years ago. After I red the book I feel the need to read it again and read all Greene's books. This is a must read book.