There are a lot of these books out there, combining a hint of psychology, a dollop of marketing nous and a soupcon of self-help. Some have a small idea and dress it up. "Switch" avoids that trap. Its concept is simple and its aim is true. The purpose of the book is to help the reader understand some of the key elements of change. If the book has a fault it's that it labours its concept a little too often (Thinking Fast, Thinking Slow did a similar concept better) but it certainly makes you think and helps you to realise that making a change- making a switch - is within our grasp
