Dietrich Bonhoeffer was only thirty-nine years old when he was executed in a Nazi concentration camp in 1945, yet his courage, vision, and brilliance have greatly influenced the twentieth-century Church and theology. Particularly through his bestselling classic, The Cost of Discipleship, Bonhoeffer profoundly shaped such minds and movements as Martin Luther King, Jr., and Leonardo Boff, civil rights and leberation theology. A Testament to Freedom,...