Pope Paul VI (1963-78) was one of the most important and influential pontiffs of the twentieth century. After serving thirty-four years in the Roman Curia and eight as archbishop of Milan, he was elected to succeed the enormously popular John XXIII in 1963. In this engaging biography, Michael Collins examines this deeply spiritual man who is remembered as a reformer, evangelizer, unifier, and the very first pilgrim pope. Pope Paul VI began his papacy with a series of international journeys, the first of such a scale undertaken by any pontiff before him. These brought him face-to-face with modern life throughout the globe and the challenge of making the Christian message relevant in a secular world. Paul VI is regarded for his efforts to reduce poverty in the developing world, improve educational and health standards, and foster better relations between Catholics and Orthodox and Reformed Christians. He was beatified in 2014 by Pope Francis.