Are these the Words of Jesus?

The parables and the Sermon on the Mount are just two of the many instances when Jesus spoke to the people. Equally well-known are His remarks to His disciples, to evil spirits, to the Pharisees and to the humble people who approached Him on errands of public or personal application. But does the Bible contain all of Jesus's teachings? Apart from the New Testament, could there be other depositories of his sayings recently uncovered or previously discounted? In Are These the Words of Jesus? Ian Wilson presents a number of answers that are both exciting and contentious. The author draws on neglected apocryphal sources and recently discovered manuscripts such as the Nag Hammadi Gospel of Thomas and the Mar Saba 'Secret Gospel', and assesses their claim to authenticity