This book emerges from a consultation in June 1996 with Walter J. Hollenweger, acknowledged doyen of Pentecostal studies, held at Selly Oak Colleges, Birmingham. Different perspectives are offered from scholars from five continents, emphasizing the increasingly non-Western nature of this rapidly growing Christian movement and the significance of its roots. Central challenges facing Pentecostalism after a century of existence include the central doctrine of Spirit baptism and its relationship to the 'supernatural', the political relevance of the movement in different parts of the world, the indigenization and contextualization of the movement, and case studies from four continents.