In Battle for Peace about his arrest for being an unregistered agent for a foreign power.  
He thanked "the communists of the world for their help in my defense" in his memoir In Battle for Peace about his arrest for being an unregistered agent for a foreign power.  His many works include a biography of John Brown, the Marxist influenced history Black Reconstruction, and the sociological work The Philadelphia Negro.  A longtime teacher at Atlanta University, at the end of his life he became a citizen of Ghana, where he died.  The editor for twenty-five years of the journal Crisis, he developed the idea of the "Talented Tenth."  FTP, identify this author of The Souls of Black Folks and co-founder of the NAACP.
He thanked "the communists of the world for their help in my defense" in his memoir
W(illiam) E(dward) B(urghardt) Du Bois