This is a thoroughly enjoyable, but greatly simplified overview of Greene's book on string theory. The book includes a great introduction to both Einstein's theories and to Quantum Mechanics before launching into its history and future forecast for string theory, whereas the TV series spends more time on the preliminaries and only touches on string theory, which makes sense. Greene is a great host--his abilities clearly extend beyond writing and teaching. The graphics used to illustrate things are very good--although a bit over the top at times. Highly, highly recommended, as is the follow-up PBS series. ( )