Over the past four decades, a new form of Pentecostalism has irrevocably changed the religious landscape of global Christianity. This changed landscape is particularly evident in Africa, considered by many as the new center of Christianity. In Africa, most mainline denominations created space for Neo-Pentecostalism and continued with their historic mission. Most, but not all. Relying on dozens of in-depth interviews with church leaders and members, Randy Arnett explains that many African Baptists pentecostalized. They adopted Neo-Pentecostalism for their faith and practice. In this carefully researched work, he unravels the context, nature, and reasons for pentecostalization. Arnett applauds the strengths, and challenges the flaws of the movement. He concludes with suggested strategies for church leaders, evangelists, and missionaries who work in a Neo-Pentecostal environment.