In 2007 world-famous violinist Joshua Bell performed incognito for 45 minutes in the New York subway, playing a Stradivarius. Few stopped to listen; he made $32.17. Jack Nasher opens his book with this story to prove his point: demonstrating competence, even brilliance, isn't enough--you have to sell it. Nasher explores the minutiae of communication and body language to show us how to confidently convince others of our competence in a professional context. A professional mentalist, professor, and successful businessman, Nasher is well versed in the inner workings of the human psyche. He draws on fascinating stories, the latest research, and his own experiences to offer a complete guide to putting people at ease and making them realize you really do know what you're doing.