One of the central thinkers of modern American evangelicalism, Norman L. Geisler (1932–2019), died recently. He was a Christian philosopher, apologist, theologian, educator, and debater. He was also one of the most prolific Christian writers ever—having authored, coauthored, or edited some 127 books.1 Geisler received degrees from Tyndale College and Wheaton College and his doctoral degree in philosophy from Loyola University of Chicago. He had a long, distinguished career and ministry.