James C. Crimmins has been a professional persuader for 27 years, mainly as chief strategic officer of DDB Chicago and a worldwide brand-planning director with clients such as Budweiser, McDonald’s, State Farm, and Betty Crocker. He has earned a PhD in sociology and a master’s degree in statistics, and has taught integrated marketing communication at Northwestern University’s Medill School. Crimmins combines his scientific, professional, and academic background to explain how the revolution in mind science changes the conventional wisdom of influence and can make anyone a more successful persuader.