With the current interest in the charismatic movement, questions about the Holy Spirit are again in the forefront of Christian discussion. These questions range from the role of the Holy Spirit in the Trinity, to the relation of the Spirit to prayer, prophecy, and the sacraments, to the place of the gifts of the Spirit in Christian living. C. F. D. Moule examines these various questions in an attempt to lead the reader into an understanding of the Spirit of God in Christian doctrine and experience.