Includes bibliographical references and index.

Vivid stories of the ten popes the author judges "the most influential in history," including St. Peter, the Rock upon whom the Catholic Church was built, and follows with Leo the Great (fifth century), Gregory the Great (sixth century), Gregory VII (eleventh century), Innocent III (thirteenth century), Paul III (sixteenth century), and Pius IX (nineteenth century). Among twentieth-century popes, Duffy examines the lives and contributions of Pius XII, who was elected on the eve of the Second World War, the kindly John XXIII, who captured the world's imagination, and John Paul II, the first non-Italian pope in 450 years.

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