"Eliezer "Elie" Wiesel was a Romanian-born American Jewish writer, professor, political activist, Nobel Laureate and Holocaust survivor. He was the author of 57 books, written mostly in French and English, including Night, a work based on his experiences as a prisoner in the Auschwitz and Buchenwald concentration camps."

Source:

https://en.wikipedia.org/wiki/Elie_Wiesel