Catholics R NOT Christians is a comparison and contrast between the Catholic Catechism and the Bible. Because Catholicism does not see the Bible as the final authority in terms of Christianity, but scripture and tradition collectively, its authenticity as an actual Christian Faith is questioned. This book points out many inconsistencies between the two, and thus asks the question, "Which one is right?" It also challenges Catholic doctrine and its effectiveness, i.e. celibacy, praying to the dead, and confession. The book attacks beliefs such as Pope Infallibility, praying to Mary, claims of her perpetual virginity, and the like.