In "Born Round: The Secret History of a Full-Time Eater," due out Aug. 20 from The Penguin Press, Bruni describes his lifelong struggle with food. "[Food] took away years, in a sense," he said. "I mean they were not empty years, they were years of professional engagement and some professional accomplishment. But they were years when I was living a very truncated, circumscribed life." (Courtesy of The Penguin Press)