Ultimately, he delves into the darkness to explain how and why these people were capable of committing the worst crime in the history of the world. Rees traces the rise and eventual fall of the Nazis through the lens of ‘twelve warnings’ – from talk about ‘them’ and ‘us’ to the escalation of racism – whilst also highlighting signs to look out for in present day leaders...

Auschwitz examines the mentality and motivations of the key Nazi decision makers, and perpetrators of appalling crimes speak here for the first time about their actions. Drawing on Rees's landmark documentary and material from the Russian archives, which challenged many previously accepted arguments, this book reveals significant and disturbing facts - from the operation of a brothel to the corruption that was rife throughout the camp.