The Black Book of Communism

The Black Book of Communism: Crimes, Terror, Repression is a 1997 book by Stéphane Courtois, Andrzej Paczkowski, Nicolas Werth, Jean-Louis Margolin, and several other European academics documenting a history of political repression by communist states, including genocides, extrajudicial executions, deportations, and deaths in labor camps and allegedly artificially created famines. The book was originally published in France as Le Livre noir du communisme: Crimes, terreur, répression by Éditions Robert Laffont.

Source: Wikipedia — The Black Book of Communism (CC BY-SA 4.0)