He is the author of Muting White Noise: Native American and European Novel Traditions (University of Oklahoma Press, 2009) and The Red Land to the South: American Indian Writers and Indigenous Mexico (University of Minnesota Press, 2012). In two chapters of the latter work, The Red Land to the South, Professor Cox discusses the writing of Todd Downing (1902-1974), the Oklahoma Choctaw Golden Age detective novelist who published nine mysteries of his own between 1933 and 1941, in addition to reviewing several hundred mysteries in the 1930s.