Book excerpt: No socialist organization has ever had a more profound effect on black life than the Communist Party did in Harlem during the Depression. Mark Naison describes how the party won the early endorsement of such people as Adam Clayton Powell Jr. and how its support of racial equality and integration impressed black intellectuals, including Richard Wright, Langston Hughes, and Paul Robeson.This meticulously researched work, largely based on primary materials and interviews with leading black Communists from the 1930s, is the first to fully explore this provocative encounter between whites and blacks. It provides a detailed look at an exciting period of reform, as well as an intimate portrait of Harlem in the 1920s and 30s, at the high point of its influence and pride.Mark Naison is professor of African American studies and history at Fordham University. He is the author of White Boy: A Memoir and co-author of The Tenant Movement in New York City, 1940_1984.