examples of world-affirming movements, Wallis mentions Werner Erhard's est and Transcendental Meditation. See also Anthropology of religion List of Christian movements Psychology of religion Religious denomination Sect Sectarianism Sociology of religion References Further reading Chryssides, George D., "New Religious Movements – Some problems of definition", Diskus, Internet Journal of Religion, 1997. Available online Koehrsen, Jens, When Sects Become Middle Class. Impression Management among Middle-Class Pentecostals in Argentina., in: Sociology of Religion, 2017, 78(3):318–339 . McGuire, Meredith B. Religion: the Social Context, Long Grove (Ill.): Waveland Press, 2002, (fifth edition) Vasileva, E.N. "Problems and Difficulties of Classifying Religions on the Basis of Confessional Differences" In: European Journal of Science and Theology, vol. 10, no. 6, pp. 37–46. External links Church sect theory by William H. Swatos, Jr . in the Encyclopedia of Religion and Society by Swatos (editor) A typology of new religious movements and its empirical indicators, by Tadeusz Doktòr, Warsaw University Sociology of religion