The strength of Fracture is that it is very much like a cracking radio script: entertaining and easy to digest. Its weakness is the same. There isn’t much depth to most of the case-studies, or the chapters on children’s literature, or on the ‘science’ of genius. But my guess is that most readers will enjoy this book — and you can always delve deeper (there is a bibliography) on your own initiative if you’re tempted to investigate in greater detail. You know, like a genius would.