The Unfinished Reformation: What Unites and Divides Catholics and Protestants After 500 Years by Gregg Allison & Christopher A. Castaldo

The Unfinished Reformation provides a insightful examination of the theological and cultural distinctions separating Catholicism and Protestantism.

In 1517, a single act—a Catholic monk posting his grievances on a German church door—ignited a revolution in Christianity. That monk was Martin Luther, and that revolution became the Protestant Reformation. While this movement brought renewal and adaptability to the church, it also sowed discord, creating a lasting divide between Catholics and Protestants. Five centuries later, many of these tensions remain unresolved. This raises a critical question: Is the Reformation truly over?

In The Unfinished Reformation, Gregg Allison and Chris Castaldo present a concise yet thorough exploration of the core similarities and differences between these two major Christian traditions. Covering essential doctrines and practices, the book delves into:

• Scripture, Tradition, and Interpretation
• The Image of God, Sin, and the Role of Mary
• The Nature of the Church and the Sacraments
• The Doctrine of Salvation

Written with clarity and depth, this book challenges readers to reflect on their faith, engage in meaningful dialogue across denominational lines, and foster unity through a shared focus on the gospel of Jesus Christ.