Open: An Autobiography is a memoir written by former professional tennis player Andre Agassi with assistance from J. R. Moehringer published on November 9, 2009. Throughout the book, Agassi, an eight-time Grand Slam champion and former world No. 1, details his challenging childhood under the supervision of a demanding father and prolonged struggles with the physical and psychological tolls of professional tennis. Despite controversy surrounding Agassi's admission to using methamphetamine in 1997, the book reached No. 1 on the New York Times Best Seller list and was met with critical acclaim, with New York Times writer Sam Tanenhaus claiming that Open "is not just a first-rate sports memoir but a genuine bildungsroman, darkly funny yet also anguished and soulful".