The Spirit of Grace, by Alister E. McGrath

In this fourth book in the Heart of Christian Faith series, McGrath covers the part of the creed dealing with the Holy Spirit and the church. With great lucidity, McGrath writes about human nature and grace. Trained in both natural science and theology, he is adept at challenging reductionist views of human nature and engaging the New Atheists. McGrath draws on a variety of sources with an ecumenical spirit, but he has an Augustinian-Reformed perspective.