Ingeborg Hecht was the daughter of a German Jewish father and a non-Jewish mother. The Nazi regime persecuted her even after her parents divorced in 1933 but not with the same lethality as other Jews. Her father, a prosperous attorney, was prohibited from contact with her and in 1944 was sent to die in Auschwitz. She moved with her mother to Baden, where she survived World War II. She became the author of several nonfiction works on Nazism and the treatment of families of mixed marriages. Her own memoirs Invisible Walls: A German Family Under the Nuremberg Laws and To Remember Is to Heal shared details of her personal story, including the loss of her daughter's father, whom she could not marry, on the Russian front; and her fears of dying coupled with the guilt of surviving and faring better than most of her relatives and friends.