C.S. Lewis is one of the most influential Christian writers of the 20th century. His works span theology, apologetics, personal reflection, and literary criticism—all written with his trademark clarity, wit, and deep insight. Whether you’re a longtime fan or new to Lewis, these ten Christian nonfiction books offer profound wisdom for faith, doubt, and everyday discipleship.
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The 10 best Christian nonfiction books by C.S. Lewis every Christian should read
1. The Problem of Pain by C. S. Lewis
First published in 1940
Lewis tackles one of Christianity’s toughest questions: If God is good, why does suffering exist? With logical precision and pastoral sensitivity, he explores the nature of pain, free will, and God’s purposes. A must-read for anyone wrestling with doubt or grief.
2. The Abolition of Man by C. S. Lewis
First published in 1943
This philosophical work critiques moral relativism and defends objective truth. Lewis argues that abandoning universal values leads to the “abolition” of humanity itself. Highly relevant in today’s cultural debates.
3. Miracles by C. S. Lewis
First published in 1947
Lewis makes a compelling case for the reality of miracles, including the Resurrection. He dismantles naturalistic objections and presents a rational defense of the supernatural. Great for skeptics and believers alike.
4. The Weight of Glory by C. S. Lewis
First published in 1949
This collection of sermons and essays includes Lewis’s famous title piece on heaven and human longing. Other highlights explore forgiveness, love, and the eternal significance of daily life.
5. Mere Christianity by C. S. Lewis
First published in 1952
Arguably Lewis’s most famous book, Mere Christianity distills the core beliefs of the faith in a way that’s accessible to all. Based on his BBC radio talks, it remains one of the best introductions to Christian apologetics.
6. Surprised by Joy: The Shape of My Early Life by C. S. Lewis
First published in 1955
Lewis’s spiritual autobiography traces his journey from atheism to Christianity. He reflects on the “joy” that haunted him—a longing that ultimately led him to Christ. Inspiring for seekers and believers.
7. Reflections on the Psalms by C. S. Lewis
First published in 1958
Lewis shares his honest, sometimes surprising thoughts on the Psalms—their beauty, difficulties, and place in worship. A refreshing take on Scripture from a literary genius.
8. The Four Loves by C. S. Lewis
First published in 1960
Lewis explores affection, friendship, eros, and charity (divine love), showing how each reflects God’s nature. A profound meditation on human relationships in light of faith.
9. A Grief Observed by C. S. Lewis
First published in 1961
Written after his wife’s death, this raw, vulnerable journal captures Lewis’s struggle with grief and faith. Unlike his polished apologetics, this book offers comfort to those in mourning.
10. Letters to Malcolm: Chiefly on Prayer by C. S. Lewis

First published in 1964
In fictional letters to a friend, Lewis discusses prayer—its challenges, mysteries, and joys. Practical yet profound, this book deepens one’s prayer life.
C.S. Lewis’s works continue to inspire, challenge, and comfort readers decades after his death. Whether you’re looking for intellectual defense of the faith (Mere Christianity), emotional honesty (A Grief Observed), or deep theological reflection (The Problem of Pain), Lewis has something for every Christian—and every seeker.
Which of these books have you read? Which one will you pick up next? Let us know and join the conversation on X: @Nonfictioned1