Book excerpt: The growth of Global Pentecostalism in the past century has been studied and documented from many perspectives. Its leadership, culture and ecclesiology, however, has received scant academic and theological attention. This book based on an extensive research study of the Assemblies of God of Great Britain (AoG) could not be more timely, conducted as AoG entered its centenery decade and faced the challenges that its historic culture and leadership dynamics posed. The leadership struggles discussed in this book will resonate with any denomination that has grown or wrestled with polity, leadership and culture.