S. D. Nelson is a member of the Standing Rock Sioux Tribe in the Dakotas. He is the award-winning author and illustrator of a number of books, including Crazy Horse and Custer, Red Cloud, Sitting Bull, Black Elk’s Vision (winner of the Western Writers of America Spur Storyteller Award and named a Chicago Public Library Best of the Best), and many more. He lives in Flagstaff, Arizona.