In the years immediately following World War II, Black Mountain College, an unaccredited school in rural Appalachia, became a vital hub of cultural innovation. Practically every major artistic figure of the mid-twentieth century spent some time there: Merce Cunningham, Ray Johnson, Franz Kline, Willem and Elaine de Kooning, Robert Motherwell, Robert Rauschenberg, Dorothea Rockburne, Aaron Siskind, Cy Twombly--the list goes on and on. Yet scholars...