I was very disappointed with the book. It is a VERY shallow view on many historical scientists. Frankly the book did nothing to me, it is so broad you will forget about it twenty minutes later. The biographical aspects mixed with the scientific contribution of that particular person amounts to virtually no information due to its brevity.It was a bit amusing to see the author trying to compact string theory in one paragraph with no math, but what is the point really? At this level of detail you will not learn anything.I can't imagine to what audience this book was written.