Laurence Rees’s Holocaust definitively answers them. ‘With The Holocaust Rees has set himself the task of writing an accessible chronological account of the murder of six million Jews in conditions of scarcely imaginable horror. He’s done it excellently. There is no shortage of books on the Holocaust but Rees’s stands out as a readable and authoritative exposition of how and why it happened, and the barbarous methods by which it was pursued. The amount of ground it covers in 500 pages is remarkable – from the anti-Semitism of popular German literature of the 19th century to Hitler’s suicide and the surrender of his regime. It’s excellently written and skilfully interweaves narrative history, sound interpretation and the recollections (through interviews, listed in the notes as previously unpublished testimony ) of survivors. Rees provides an exemplary account of how the greatest crime in modern history came about.