FonoBook is pleased to present "Don't Eat The Marshmallow...Yet!" written by world-renowned motivational speaker Joachim de Posada and Ellen Singer.Arthur is a chauffeur who is intellectually gifted. Jonathan is no less bright than Arthur, equally hard-working, yet a billionaire. So why is Jonathan in the back seat of the limousine and Arthur in the front?What explains the difference between success and failure? Joachim de Posada found the answer in a Stanford University study of children...