Das Blaue Buch: Geheimes Kriegstagebuch 1941 – 1945

After Erich Kästner’s books were banned by the Nazis in 1933, he decided to keep a secret diary. To do so, he resorted to a blue-bound, unlabelled book that he hid among the other four thousand volumes in his library. For security reasons, Kästner also made his notes in shorthand.