The collective work deals with the problems of if, how, and why the histories of German Nazism and Soviet Communism should and could be situated within one coherent narrative. As historical phenomena, can Communism and Nazism fruitfully be compared to each other? Do they belong to the same historical contexts? Have they influenced, reacted to or learned from each other? Are they interpreted, represented and used together by posterity? The background of the book is twofold. One is external. There is an ongoing debate about the historical entanglements of Communism and Nazism, especially about Auschwitz and Gulag, respectively. Our present fascination with the evil history of genocide has situated the Holocaust as the borderline event in Western historical thinking. The crimes against humanity perpetrated by the Soviet Communist regime do not have the same position but are considered more urgent in the East and Central European states that were subdued by both Nazi and Communist regimes.