Through fieldwork research, this book seeks to explore Catholic ecumenism and the proliferation of Pentecostalism. Using data gathered from four West African countries, it additionally endeavors to investigate the sociopolitical impact of Pentecostalism, which is growing exponentially and is seen by many as the new face and phase of Christianity on the continent. This book puts a search light on the reality of West African Pentecostalism and its relationship with the older Christian traditions. It cogently asks if Pentecostalism is a cog in the wheels of the fragile ecumenical work among West African Christianity and wonders about its impact on the poor existing social, economic, and political situations common to most West African politics and governments. This book is for professionals and students of religion and theology, and is useful for the casual reader.