A detailed explanation of the philosophy and practice of Catholic Christianity, a guide to the most significant saints, and a history of the lives and works of 266 popes. Discusses the essential tenets of Catholic doctrine and belief, the significance and traditions of Catholic ritual, and explains the seven sacraments of baptism, confirmation, Holy Communion, confession, anointing the sick, holy orders and matrimony. Explores the religious and social history of more than 300 Christian saints from the Holy Family and the Apostles through the medieval era and up to modern times. Includes biographies for each saint, with historical information about the times in which they lived, the holy works they performed, their feast day and patronage. Offers a comprehensive account of the lives of 266 popes from the time of St Peter and the early church through the glories of Julius II and the Renaissance to John Paul II, Benedict XVI and Francis. Beautifully illustrated with over 1,500 fine-art paintings and photographs.