Linda Woodhead is Professor of Sociology of Religion at Lancaster University, and Director of the Religion and Society Programme - a major national research council initiative which embraces 80 separate projects. Her books include Religions in the Modern World (with Koko Kawanami and Chris Partridge), An Introduction to Christianity, The Spiritual Revolution (with Paul Heelas), Peter Berger and the Study of Religion, and Congregational Studies in the UK (with Mathew Guest and Karin Tusting).

Ole Riis is Professor of Sociology of Religion at the University of Agder in Norway. His research includes sociology of religion, general sociology, methodology of social science, survey studies and public planning. His books, in Danish and English, include On Methods and Theories in the Sociology of Religion, Social Science in Practice, Religion in Secularizing Society, and Combined Methods in the Social Sciences.