Auchincloss, Louis, "Robert E. Sherwood," in The Man behind the Book: Literary Profiles, Houghton Mifflin Company, 1996, pp. 192-98.

Auchincloss's brief overview of Sherwood's life is a good starting point for students.

Meserve, Walter J., Robert E. Sherwood: Reluctant Moralist, Pegasus Press, 1970.

Meserve focuses on Sherwood's hopes and fears for humanity, centering his book around the playwright's shift from pacifist to supporter of American involvement in war.

Morgan, Philip, Italian Fascism, 1919-1945, St. Martin's Press, 1995.

The last half of this study deals with the situation in Italy after 1933 and serves as clear and readable overview of the background of this play's politics.

Moses, Montrose J., "Robert E. Sherwood," in Dramas of Modernism and Their Forerunners, D.C. Heath and Company, 1941.

This introduction to Idiot's Delight, in an anthology published while Sherwood was at the height of his career, views his work as a more sustained and coherent...