John Bowker is Emeritus Professor at Gresham College, London. He has taught Religious Studies at the universities of Cambridge, Lancaster and Pennsylvania, and at North Carolina State University. He has been a consultant for UNESCO as well as a BBC broadcaster. He is the author or editor of more than forty books including The Oxford Dictionary of World Religions (OUP, 1997), Is God a Virus? Genes, Culture and Religion (SPCK, 1995), The Meanings of Death (CUP, 2008, winner of the HarperCollins Prize), What Muslims Believe (Oneworld, 2009), God: A Very Short Introduction (OUP, 2014), Beliefs that Changed the World (Quercus, 2015) and Why Religions Matter (CUP, 2015).