C.S. Lewis is one of the most loved Christian writers of the 20th century. His books mix deep faith with simple storytelling, helping readers young and old think about God, life, and eternity. From children’s fantasy to Christian theology, his works continue to inspire millions. Below is a look at some of his most popular books, with short overviews and Scripture tie-ins.
Mere Christianity (1952)
This book grew out of radio talks Lewis gave during World War II. It explains the core beliefs of the Christian faith in clear, simple terms. Lewis uses logic and everyday language to show why faith in Christ makes sense. Many readers say it helped them understand Christianity for the first time, and it remains one of the most recommended introductions to the faith.
John 14:6 — “Jesus answered, ‘I am the way and the truth and the life. No one comes to the Father except through me.’”
The Screwtape Letters (1942)
Written as fictional letters from a senior demon (Screwtape) to his nephew Wormwood, this book gives a behind-the-scenes look at temptation. Lewis uses satire to show how the enemy tries to pull believers away from God. It helps readers become more alert to the subtle ways sin can sneak into everyday life, making it a powerful tool for spiritual reflection.
1 Peter 5:8 — “Be alert and of sober mind. Your enemy the devil prowls around like a roaring lion looking for someone to devour.”
The Chronicles of Narnia (1950–1956)
This seven-book fantasy series is one of Lewis’s best-known works. Stories like The Lion, the Witch and the Wardrobe teach spiritual truths through adventure. Aslan, the great lion, represents Christ’s power, sacrifice, and love. The series has captured the imagination of children for generations, while adults often see deeper biblical symbolism woven through the tales.
Revelation 5:5 — “The Lion of the tribe of Judah, the Root of David, has triumphed.”
The Great Divorce (1945)
This book imagines a bus ride from hell to heaven. Through vivid pictures, Lewis explores the choice each soul makes—clinging to sin or embracing God’s grace. It reminds readers that our choices in life have eternal weight and that God’s mercy is always available to those who will receive it.
Matthew 7:13 — “Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it.”
Surprised by Joy (1955)
This is Lewis’s own spiritual autobiography. He shares his journey from atheism to belief in Jesus Christ, showing how God uses even pain and longing to draw people closer. The book offers a very personal look at how God worked in his heart, making it both a testimony and an encouragement for seekers.
Jeremiah 29:13 — “You will seek me and find me when you seek me with all your heart.”
The Problem of Pain (1940)
In this work, Lewis wrestles with the hard question of why a loving God allows suffering. He explains how pain can be part of God’s plan to shape us. While honest about the difficulty of suffering, Lewis offers hope by pointing to the bigger picture of God’s eternal purpose for His children.
Romans 8:28 — “We know that in all things God works for the good of those who love him.”
A Grief Observed (1961)
Lewis wrote this raw, emotional book after the death of his wife, Joy. It’s an honest reflection on loss, faith, and how God meets us in sorrow. The book resonates deeply with those who are grieving because it gives voice to doubts, struggles, and the slow journey back to trust in God.
Psalm 34:18 — “The Lord is close to the brokenhearted and saves those who are crushed in spirit.”
Quick Comparison of His Most Popular Books
| Book Title | Main Theme | Best For | Key Scripture |
|---|---|---|---|
| Mere Christianity | Core Christian beliefs | New believers, seekers | John 14:6 |
| The Screwtape Letters | Temptation and spiritual warfare | Mature Christians | 1 Peter 5:8 |
| Chronicles of Narnia | Allegory of Christ’s work | Families, children | Revelation 5:5 |
| The Great Divorce | Heaven and hell choices | Thinkers, adults | Matthew 7:13 |
| Surprised by Joy | Lewis’s conversion story | Autobiography readers | Jeremiah 29:13 |
| The Problem of Pain | Why suffering exists | Those struggling with pain | Romans 8:28 |
| A Grief Observed | Personal loss and faith | Grieving hearts | Psalm 34:18 |
Final Thoughts
C.S. Lewis wrote with clarity and creativity, always pointing readers toward Jesus. His works remain timeless because they combine storytelling with biblical truth. Whether you are looking for deep theology, children’s tales, or personal reflections, Lewis’s books can strengthen your walk with God.
