Lisa Rogak is the author of the New York Times bestselling biography "Angry Optimist: The Life and Times of Jon Stewart" (Thomas Dunne Books/St. Martins Griffin; July 21). She has written more than 40 books, including the biographies "And Nothing But the Truthiness: The Rise (and Further Rise) of Stephen Colbert" and the Edgar- and Anthony-nominated "Haunted Heart: The Life and Times of Stephen King." She is the editor of the New York Times bestselling book "Barack Obama in His Own Words." Learn more at www.lisarogak.com.