That's according to a survey released today by the group Iraq and Afghanistan Veterans of America (IAVA).
This month, the paperback was released and it’s on the New York Times Paperback Best Seller list.
The book tells the story of Talmadge, a solitary fruit farmer in early twentieth century Washington state.
His life is turned upside down when he takes in two girls who tried to steal his produce.
Read a book excerpt and hear the original piece:
This interview originally aired in August 2012.