I was happy with Motivation for Dummies. It provided me with a good basic guide of motivation theories and then some ideas of how motivation can be worked on. I have studied the motivation theories before on several courses of study, but this text explained them at least as clearly, if not clearer, than a teacher in a classroom. Much of the book was for the individual to improve his own motivation, I would really have prefered a little less of a 'self-help' book, that would have got the fifth star.