marvelous book - more revealing about Einstein and his private life that had ever read before. During the course of reading the book my attitude toward Einstein changed several times. While there are parts that may be difficult for a layman to understand, one can read the book and get to fully appreciate what Einstein's genius and influence has meant to the world. It is a book about the real Einstein - the work and research by the author is clearly shown throughout the book. It is alive and very difficult to put down.