Holocaust diarists

Victor Klemperer (9 October 1881 – 11 February 1960) was a German scholar who also became known as a diarist. His journals, published in Germany in 1995, detailed his life under the German Empire, the Weimar Republic, the Third Reich, and the German Democratic Republic.
The three volumes of his diaries have been published in English translations: I Shall Bear Witness, To the Bitter End, and The Lesser Evil. The first two cover the period of the Third Reich have since become standard sources and have been extensively quoted. His book Lingua Tertii Imperii, published in English as The Language of the Third Reich, studies how Nazi propaganda manipulated and influenced the German language.

Esther (Etty) Hillesum (15 January 1914 – 30 November 1943) was a Dutch Jewish author of confessional letters and diaries which describe both her religious awakening and the persecutions of Jewish people in Amsterdam during the German occupation. In 1943, she was deported and murdered in the Auschwitz concentration camp.