Book excerpt: Predominantly Catholic for centuries, Latin America is still largely Catholic today, but the religious continuity in the region masks great changes that have taken place in the past five decades. In fact, it would be fair to say that Latin American Christianity has been transformed definitively in the years since the Second Vatican Council. Religious change has not been obvious because its transformation has not been the sudden and massive growth of a new religion, as in Africa and Asia. It has been rather a simultaneous revitalization and fragmentation that threatened, awakened, and ultimately brought to a greater maturity a dormant and parochial Christianity. New challenges from modernity, especially in the form of Protestantism and Marxism, ultimately brought forth new life. In The Rebirth of Latin American Christianity, Todd Hartch examines the changes that have swept across Latin America in the last fifty years, and situates them in the context of the growth of Christianity in the global South.