Freedom is vital both to Karl Barth's theology and to modern religion, politics, and culture. Leigh describes how Barth's lifelong fascination by freedom culminated in a fresh, daring engagement with it in his last completed book, volume IV/3 of the massive Church Dogmatics--which is probably the most important work of Christian theology in the twentieth century. That volume builds on Barth's earlier work but also goes beyond it in ways that have not yet been appreciated. Leigh shows how this mature theology of Barth not only responds profoundly to key questions about freedom, both in philosophy and theology, but also opens up a rich, habitable understanding of Jesus Christ, and of life in relationship with him, that is prophetic for the twenty-first century. This involves a dynamic integration of knowing with being, being with action, truth with witness, individual with community, and divine initiative with human flourishing. At the heart of this life with God is participation in the asymmetrical yet utterly reciprocal interaction between human beings and the God who loves them in freedom. Leigh succeeds both in describing this participation convincingly and in demonstrating its provocative attractiveness.