Book excerpt: Making up approximately 20 percent of South India's Protestants, Pentecostals are an influential part of India's Christian culture, yet there is a distinct lack of scholarly focus on this increasingly large group. This careful, well-informed study by Michael Bergunder ably fills that gap. After a brief historical introduction to the worldwide growth of Pentecostalism, Bergunder delves into the history of the South Indian Pentecostal movement in the first section. The second section gives a systematic profile of the current movement in South India, based on a wide range of source materials and on formal interviews with nearly two hundred leading pastors and evangelists. Bergunder finishes his work with prospects for the future. Three appendixes and an extended bibliography offer ample ground for further research.