Among the Gospels, John's is unique. Its structure incorporates long conversations and extended debates, and much of its content is not found elsewhere. Jesus' relationship to the Father and his teaching on the Holy Spirit are given special prominence. Ultimately, faith, believing in Jesus, is at the centre - with signs highlighted to provoke faith and stories of those who responded to Jesus as examples of faith. Colin Kruse ably shows how the Fourth Gospel weaves its themes of belief and unbelief into its rich Christology.