Vernon, Mark: - MARK VERNON is a writer and psychotherapist who lives in London. His journalism has been published on both sides of the Atlantic, and his books-on subjects from love and friendship to the history of Christianity-have found readers from around the globe. He has a PhD in Ancient Greek philosophy, and degrees in theology and physics. He works with the research group Perspectiva, which champions the place of soul in society, and the International Society for Science and Religion, which is currently investigating spiritual intelligence.