The Tattooist of Auschwitz by Heather Morris
In April 1942, Lale Sokolov, a Slovakian Jew, is forcibly transported to the concentration camps at Auschwitz-Birkenau. When his captors discover that he speaks several languages, he is put to work as a Tätowierer(the German word for tattooist), tasked with permanently marking his fellow prisoners.
Imprisoned for over two and a half years, Lale witnesses horrific atrocities and barbarism—but also incredible acts of bravery and compassion. Risking his own life, he uses his privileged position to exchange jewels and money from murdered Jews for food to keep his fellow prisoners alive