""The distinctive social and cultural developments of recent years are so familiar to us as to become invisible."" So write the editors in the introduction. Although no missionaries worth their salt would try to evangelize without first studying the cultural and spiritual background of their hearers, the church in the late twentieth century often does not begin to understand modern and postmodern thinking. At the second conference of the Lausanne Committee for World Evangelization in Manila, 1989, Dr. Os Guinness gave a paper on Faith and Modernity, which provoked great interest. As part of the response to his paper a conference was held in Uppsala, Sweden in 1993, at which an international group of experts probed more deeply into the questions of modernity and post modernity. Participants represented the United States, Canada, India, Norway, Sweden and the United Kingdom. They included such well-known experts as Os Guinness, James Hunter, Lesslie Newbigin, Vinay Samuel, Elaine Storkey, and David Wells. Each of them has contributed to this volume, covering such topics as: What is Modernity? Truth and Authority in Modernity Information Technology and Christian Faith New Age Modernity and Spirituality Modernity and Morality This collection of papers is offered as a resource and a challenge to the church for its mission in the context of the modern world.