In 1975, Robert A. Heinlein was sixty-six, at the height of his literary career; J. Neil Schulman was twenty and hadn't yet started his first novel. Because he was looking for a way to meet his idol, Schulman wangled an assignment from the New York Daily News--at the time the largest circulation newspaper in the U.S.--to interview Heinlein for its Sunday Book Supplement. The resulting taped interview lasted three-and-a-half hours. This turned out...