Perhaps best known to Protestants as the literary editor of The Christian Century, Dr. Garrison has given us a clear and concise outline of what Protestantism is. He first sketches the historical background of the main Protestant bodies. Then he describes what Protestantism has in common with other faiths and what positions may be said to be distinctively Protestant. He also points out what ideas and practices are alien to the mind and spirit of Protestantism and what positions Protestants must firmly reject. While Dr. Garrison is at pains to point out the basic differences between Protestantism and Catholicism he is neither negative nor political in his treatment, but positive, aiming to help Protestants to know their own faith and its implications for living.