Robert penn warren (1905— 1989), a famous American poet, novelist and critic, is a member of new criticism and teaches at Yale University. He has written and published a large number of poems and nine novels, and his works are often aimed at the moral confusion caused by the erosion of traditional values in southern rural areas. The novel The King's Man (1946) and the poem The Promise (1957) both won Pulitzer prizes. The King's Men is new criticism's masterpiece. The collection of short stories "Circus in the Attic" (1948) includes the famous "Blackberry Winter". He won the National Book Award and the Paulingen Poetry Award, and became the first poet laureate in the United States in 1986.