Harlem  USA by John Henrik  Clarke. A Sociology Study.    The most comprehensive Harlem anthology ever published. A dazzling microcosm of black America’s life, letters , arts and politics by James Baldwin, Paule Marshall, Kenneth Clark, Alice Childress, Countee Cullen, Ossie Davis, Lorraine Hansberry, Langston Hughes, Claude Brown, Julian Mayfield and 30 others.