These authors claim that deliberate, directed fantasy is a valuable tool for changing actual behavior. It can, they say, stop a spaghetti-stuffer in mid-strand. After ten chapters of theory justification, including offhand references to Jung and Freud and some nearly incomprehensible jargon (catchwords like ""meta-imagery"" and ""systematic desensitization""), they spoon-feed their readers some detailed fantasies to keep them from eating. ""Image"" a room full of the desired food, they instruct. Roll around in it. One man, of whom the authors seem inordinately proud, turned his image of a dish of ice cream into a bowl of melting sperm. He lost his appetite, it is gleefully reported. One would think so.