Book thief John Charles Gilkey stole hundreds of thousands of dollars' worth of rare books from book fairs, stores, and libraries around the country. Determined to catch Gilkey, Ken Sanders, a book dealer with a penchant for detective work, tirelessly pursued him. Journalist Allison Hoover Bartlett befriended both eccentric characters, obtaining crucial details on both men's stories. Here, she reveals exactly how Gilkey pulled off his dirtiest crimes and how Sanders ultimately caught him.