Absolutely brilliant. Explains how clicker training and shaping works which makes it easier to understand how to do it. Lots of wonderful anecdotes about dogs, dolphins, horses, fish!and people. Lots of video links which give another insight into the workings of the clicker. The one with the fish who goes into a paddy when he wasn't rewarded is surprising. Very easy to read. Any animal lover would enjoy this book. It really opens the mind to look at animal training in a different way. I think everyone should read this book. Clicker shaping and TAGGing could change the world for the better.