This is the cover of "Catholics and Protestants: What Can We Learn from Each Other" by Peter Kreeft. The book is reviewed by Eugene Fisher. (CNS) Help us expand our reach! Please share this article "Catholics and Protestants: What Can We Learn from Each Other" by Peter Kreeft. Ignatius Press (San Francisco, 2017). 204 pp., $16.95. Peter Kreeft is professor of philosophy at Boston College. He has written numerous books on a popular level about Catholic theological issues and thinkers, including Augustine, Aquinas and Pascal. Here he looks into the important beliefs that Catholics and Protestants share, and how their differences can be reconciled as part of the ecumenical dialogue toward Christian unity.