“Ashbery’s early work was mostly known in avant-garde circles, but his arrival as a major figure in American literature was signaled in 1976, when he became the only writer to win the Pulitzer Prize, the National Book Award and the National Book Critics Circle Award in the same year, for his collection “Self-Portrait in a Convex Mirror.” The title poem of the volume is a 15-page meditation on the painting of the same name by Parmigianino, the Italian Renaissance artist.”