Since the late 1950's, Robert Coles has been studying, living with, and, above all, listening to the American poor. The result is one of the most vigorous and searching social studies ever undertaken by one man in the United States. Migrants, Sharecroppers, Mountaineers is the second volume in Dr. Coles's award-winning series, Children of Crisis. In it, he listens to three groups: the migrant workers who travel the eastern coast of this country, picking crops day after day; the sharecroppers and tenant farmers who live on isolated southern plantations, just as their ancestors did as slaves;...