On October 26, 1950, C. S. Lewis wrote the first of more than a hundred letters he would send to a woman he had never met, but with whom he was to maintain a correspondence for the rest of his life. Ranging broadly in subject matter, the letters discuss topics as profound as the love of God and as frivolous as preferences in cats. Lewis himself clearly had no idea that these letters would ever see publication, but they reveal facets of his character little known even to devoted readers of his fantasy and scholarly writings -- a man patiently offering encouragement and guidance to another Christian through the day-to-day joys and sorrows of ordinary life. Letters to an American Lady stands as a fascinating and moving testimony to the remarkable humanity and even more remarkable Christianity of C. S. Lewis, and is richly deserving of the position it now takes among the balance of his Christian writings.