In Earth Diplomacy, Jessica L. Horton reveals how Native American art in the mid-twentieth century mobilized Indigenous cultures of diplomacy to place the earth itself at the center of international relations. She focuses on a group of artists, including Pablita Velarde, Darryl Blackman, and Oscar Howe, who participated in exhibitions and lectures abroad as part of the United States's Cold War cultural propaganda. Horton emphasizes how their...