Liar's Poker is a non-fiction, semi-autobiographical book by Michael Lewis describing the author's experiences as a bond salesman on Wall Street during the late 1980s. First published in 1989, it is considered one of the books that defined Wall Street during the 1980s, along with Bryan Burrough and John Helyar's Barbarians at the Gate: The Fall of RJR Nabisco, and the fictional The Bonfire of the Vanities by Tom Wolfe. The book captures an important period in the history of Wall Street. Two important figures in that history feature prominently in the text, the head of Salomon Brothers' mortgage department Lewis Ranieri and the firm's CEO John Gutfreund.