The crucifixion of Jesus Christ is one of the great mysteries of the Christian faith. How can it possibly be that God dies, and what can it teach us about how to live? In his introduction to Graham Tomlin's new book, Looking though the Cross, Justin Welbycallsthe cross 'the moment of deepest encounter and most radical change.' In preparation for Holy Week, Graham Tomlin will explore how the mystery of the cross can shed new, life-giving light on the way we live today. The Revd Dr Graham Tomlin is Dean of St Mellitus College, London and the author of both popular and academic books, including The Provocative Church, The Prodigal Spirit, and the Archbishop of Canterbury's Lent Book for this year, Looking through the Cross.