Book excerpt: With over one billion members, Catholicism is one of the oldest - and largest - organized religions in the world. The Everything Catholicism Book is an easy-to-follow guide that helps you gain a better understanding of this complex religion. From the Seven Sacraments to basic Church doctrine, this comprehensive book unravels all aspects of the Catholic Church, making it much easier for you to grasp. Thought-provoking and stimulating, The Everything Catholicism Book helps you understand and appreciate the complexity of the traditions and tenets of the Catholic faith.