Amazon.com: Circles : Fifty Roundtrips Through History, Technology, Science, Culture… 9780743200080: James Burke, Dusan Petricic: Books.  I have seen programs with Mr. James Burke and loved his delivery and information.  However in this format it was confusing and garbled.  Sometimes the stretches for connections were paper-thin.  I agree with one review that said this is not his best work.