The approach Alister McGrath adopts is non-denominational, very similar to the 'mere Christianity' advocated by C. S. Lewis. Indeed, the series may be seen as a guide to 'mere Christianity', focusing clearly as it does on the life of faith. We look at why Christians believe what they do; how we can best understand these ideas, and the difference they make to the way we think about ourselves and our world.
The first volume, Faith and the Creeds, concentrates on the nature of faith and the history and relevance of the Creeds, in a thrilling reflection on what we really mean when we say 'I believe'. This is excellent preparation for exploring the leading themes of the Creeds in four subsequent volumes: The Living God, Lord and Saviour - Jesus of Nazareth, Spirit of the Living God and The Christian Life and Hope.