From Dust Jacket Flap: "This Study," as Dr. Samuel M. Zwemer declares in the Introduction, "has an explicit theology. We have had manuals on missions that stressed sociology, psychology, and even ethics, but left out theology except in tabloid form . . . The only missionary motive that is not smitten to pieces by the atomic bomb of rationalism and neo-paganism in our day is the apostolic mandate of the New Testament, with all of its implications and sanctions."