Ph.D of Persuasion - Version 2.3 Ph.D of Persuasion is an electronic book which can help you master the art of persuasion, influence, and rapport. This tutorial can help you unleash the secrets of seduction, attraction, and persuasion, using techniques developed by NLP practitioners, human behaviorists, and psychologists. You can quickly learn methods that have given others tremendous success in business, romance, and friendship.