@Matthew One other thought. I don’t know how you feel about reading about the Holocaust. As I had a few distant relatives on my Mother’s side who died in the camps, I find it difficult to read about; I had Martin Gilbert’s book The Holocaust but found it a tough read and sold it.
However, Daniel Mendelsohn wrote a book called The Lost: A Search for Six out of the Six Million that is absolutely fantastic. Mendelson has a resemblance to his Uncle who died in the Holocaust and he decided he wanted to find out what happened to his Uncle, Aunt and their four daughters. It reads like a detective novel as he figures out what happens. It gives you a look into the Holocaust without being a litany of deaths.