Gilbert M. Gaul, a two-time winner of the Pulitzer Prize, has written “Billion-Dollar Ball,” which examines the big-money culture of college football. The new book will be published by Viking in August. Best known as an investigative journalist, Gaul, NF ’83, has worked for The Washington Post and the Philadelphia Inquirer, and has contributed to a number of other news organizations. He is the author of three prior books.