The book shows the background and mechanics of the Soviet mass executionsin spring 1940 of 14,500 Polish prisoners of war - army officers, police,gendarmes, and civilians - taken by the Red Army when it invaded easternPoland in September 1939. They were executed at three different sites, ofwhich the most famous is Katyn. Seven thousand three hundred otherprisoners were also shot elsewhere at this time. Katyn presents 122documents, with introductions and endnotes, selected from the publishedRussian and Polish volumes co-edited by Natalia S. Lebedeva and WojciechMaterski. The documents detail Soviet killings, the elaborate cover-up ofthe crime, the admission of truth, and the Katyn question inSoviet/Russian-Polish relations in the years 1941-2000