The Future of Christianity offers a mature assessment of themes preoccupying David Martin over some fifty years, and acts as a complement to his earlier volume, On Secularization. Particular themes of focus include the dialectic of Christianity and secularization, the relation of Christianity to multiple enlightenments and modes of modernity, the enigmas of East Germany and Eastern Europe, and the rise of the transnational religious voluntary association, including Pentecostalism, as that feeds into vast religious changes in the developing world.