Reasons for Belief

Easy-to-Understand Answers to 10 Essential Questions

Cover Art

Where to Purchase


How can you know God exists? Why should you trust the Bible? How can you be sure Jesus is the Son of God?

Do you know what you believe...and why? Regardless of your age or experience, if you're looking for clear, easy-to-understand answers to these important questions, you've come to the right place.

Trusted theologian and bestselling author Norman Geisler teams up with teacher/speaker Patty Tunnicliffe to provide concrete, step-by-step reasons for why Christians believe what they do. Organized around the most basic questions of faith, Reasons for Belief offers clear evidence for the existence of God, the reliability of the Bible, Jesus' resurrection, and more.

Whether you're a curious skeptic or a believer wanting to learn how to defend your faith, Reasons for Belief will give you the answers you're looking for.


"Geisler and Tunnicliffe have hit a grand slam with this little book. For compressing so many vital Christian truths into so few pages, I'm not sure this book has a rival."

William A. Dembski, Senior Fellow, Discovery Institute, author of The Design Inference

The Authors

  1. Norman L. Geisler

    Norman L. Geisler

    Norman L. Geisler (1932-2019) taught at top evangelical colleges and seminaries for over fifty years and was distinguished professor of apologetics and theology at Veritas Evangelical Seminary in Murrieta, California. He wrote nearly eighty books, including...

    Continue reading about Norman L. Geisler

  2. Patty Tunnicliffe

    Patty Tunnicliffe

    Patty Tunnicliffe (MA, Southern Evangelical Seminary) is a former public school teacher, Bible teacher, and conference speaker. She and her husband make their home in Santa Barbara, California.

    Continue reading about Patty Tunnicliffe


"One of the most clear, informative and engaging [apologetic books] I've read. Thirteen scintillating chapters cover today's 'hot issues' in readable, persuasive, accessible ways....a gripping 'gem'."

Christianity (U.K.)