John Steinbeck allowing Steinbeck to spend a full day on the set of "The Grapes of Wrath" and the next day on the set of "Of Mice and Men." In the 1930s and 1940s, Ed Ricketts strongly influenced Steinbeck's writing. Steinbeck frequently took small trips with Ricketts along the California coast to give himself time off from his writing and to collect biological specimens, which Ricketts sold for a living. Their joint book about a collecting expedition to the Gulf of California in 1940, which was part travelogue and part natural history, published just as the U.S. entered World War II, never
John Steinbeck a film script ("Viva Zapata!") directed by Elia Kazan and starring Marlon Brando and Anthony Quinn. In 1947, Steinbeck made the first of many trips to the Soviet Union, this one with photographer Robert Capa. They visited Moscow, Kiev, Tbilisi, Batumi and Stalingrad, some of the first Americans to visit many parts of the USSR since the communist revolution. Steinbeck's 1948 book about their experiences, "A Russian Journal", was illustrated with Capa's photos. In 1948, the year the book was published, Steinbeck was elected to the American Academy of Arts and Letters. In 1952 Steinbeck's longest novel, "East of Eden",