Karl Keating defends Catholicism from fundamentalist attacks and explains why fundamentalism has been so successful in converting “Romanists”. After showing the origins of fundamentalism, he examines representative anti-Catholic groups and presents their arguments in their own words. His rebuttals are clear, detailed, and charitable. Special emphasis is given to the scriptural basis for Catholic doctrines and beliefs. It is a masterpiece of Catholic apologetics. Keating gives a solid defense of Catholicism against the critical attacks of fundamentalists, done with patient charity that is bound to convince even the most prejudiced critic of Roman Catholicism.