In "Slave in a Box," M. M. Manring investigates why the troubling figure of Aunt Jemima has endured in American culture. The author traces the evolution of the mammy from her roots in Old South slave reality and mythology, through reinterpretations during Reconstruction and in minstrel shows and turn-of-the-century advertisements, to Aunt Jemima's symbolic role in the Civil Rights movement and her present incarnation as a 'working grandmother.'...