Jake Jackson has written, edited and contributed to over 20 books. Related works include studies of Babylonian creation myths, the philosophy to time and William Blake's use of mythology in his visionary literature. Dr Luke John Murphy (Introduction) is a researcher who works with pre-Christian religions in Europe. His publications and teaching cover Nordic mythology, early British religions, temples and religious objects, and the role of religion in past societies. He has held research posts at the University of Iceland, University of Leicester (UK), Stockholm University (Sweden) and Aarhus University (Denmark); as well as having studied in Denmark, Iceland, and the UK.