The Black Book of Communism
The Black Book of Communism: Crimes, Terror, Repression is a book written in 1997 by several authors: Nicolas Werth, Jean-Louis Panné, Andrzej Paczkowski, Karel Bartosek, and Jean-Louis Margolin. It was edited by Stéphane Courtois. It was translated by Jonathan Murphy and Mark Kramer. It was published in the United States by Harvard University Press.
It details the crimes committed by communists against humanity all across the world.