Handed Down: The Catholic Faith of the Early Christians by James L. Papandrea explores how the early Church Fathers preserved and developed the apostolic faith, shaping what became Catholicism. Papandrea argues that early Christianity closely aligns with modern Catholic beliefs, challenging the common Protestant view that Catholicism diverged from the faith of the first centuries. Using historical and theological writings, he highlights key Catholic doctrines present in early Christianity, such as Church authority, Sacred Tradition, the sacraments (especially the Eucharist), the hierarchical priesthood, and devotion to saints and Mary. The book serves as both a defense of Catholicism for Protestants and a resource for Catholics seeking a deeper historical connection to their faith.