The Black Book of Poland
The Black Book of Poland is a 750-page report published in 1942 by the Ministry of Information of the Polish government-in-exile, describing atrocities committed by Germany in occupied Poland in the 22 months between the invasion of Poland in September 1939 and the end of June 1941. All the estimates, presented in the book section by section, are based on data collected while the war in the East was in progress, and the killing of Jews by means of carbon monoxide gas during Operation Reinhard – launched in 1942 to implement the "Final Solution" – had only begun.