After Mere Christianity
The Reason for God: Belief in an Age of Skepticism by Timothy Keller
Mere Christianity proved faith doesn't require intellectual suicide—it's the book that made Christianity feel like the smartest choice in the room. Lewis armed a generation with logic, wit, and moral clarity, turning apologetics into a conversation you'd actually want to have. If you loved how he dismantled secular objections with everyday analogies and British charm, there's a modern heir to his throne.