Reverend Will van der Hart has been a priest in the Church of England for fifteen years and is currently pastoral chaplain at Holy Trinity Brompton in London and is a director of the Mind and Soul Foundation. He speaks regularly at major Christian events and churches and has written five books. He lives in London with his wife and three children.Dr. Rob Waller is a consultant psychiatrist with over twenty years of experience and is a director of the Mind and Soul Foundation. Holding a number of postgraduate qualifications in psychiatry, therapy, and education, he has also written several books on emotional and mental health. He lives in Edinburgh with his wife and two sons.