A New York Times bestseller from the "C.S. Lewis for the 21st century" ~ Newsweek In a culture shaped by doubt, Timothy Keller tackles the hardest questions about Christianity. Drawing from literature, philosophy, real-life conversations, and careful reasoning, Keller shows that belief in the Christian God is not only credible but intellectually compelling. Rather than dismissing questions, this book takes them seriously, addressing the cultural skepticism that has shaped modern views of faith. Keller offers believers a sturdy foundation for responding to challenges with confidence and clarity, while inviting skeptics, atheists, and agnostics to consider Christianity as a rational and meaningful explanation of reality. With honesty, insight, and grace, this work creates space for thoughtful dialogue and encourages readers to examine the deeper reasons behind belief — and unbelief — in God. Timothy Keller is "a pioneer of the new urban Christians." ~ Christianity Today