Van wie was Julius Spier?

Julius Spier (1887 – 1942), est un psychologue et chirologue juif allemand.

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.