The Complete Idiot's Guide® to Understanding Catholicism explores the one of the world's largest religious denominations. It offers a new approach to learning Catholicism, covering the rituals and symbols of the religions-such as Mass, the Seven Sacraments and the holy days. It includes a study of the church's beliefs, history and how it has changed over the course of the 20th century. It's an easy-to-understand tool for anyone interested in examining-or reexamining-this popular and complex faith.