Written in an incredibly compressed five-month period, the novel had an electrifying impact upon publication in 1939, unleashing a political storm with its vision of America's dispossessed struggling for survival. It continues to exert a powerful influence on American culture, and has inspired artists as diverse as John Ford, Woody Guthrie, and Bruce Springsteen. Tracing the journey of the Joad family from the dust bowl of Oklahoma to the migrant...