During the Great Depression, black intellectuals, labor organizers, and artists formed the National Negro Congress (NNC) to demand a "second emancipation" in America. Over the next decade, the NNC and its offshoot, the Southern Negro Youth Congress, sought to coordinate and catalyze local antiracist activism into a national movement to undermine the Jim Crow system of racial and economic exploitation. In this pioneering study, Erik S. Gellman shows...