Dr James Paul is director of the English branch of L’Abri Fellowship and before that he practised as a doctor in London, specialising in hospice care for the terminally ill. Many of the questions raised in What on Earth Is Heaven? are ones that people have asked him in these settings. He has been a speaker at Word Alive and European Leadership Forum, and regularly addresses university Christian Unions and the Christian Medical Fellowship students' conference, as well as speaking at L'Abri conferences globally.