If someone wants a book about Christianity, I highly recommend The Heart of Christianity: Rediscovering a Life of Faith by Marcus Borg. In this book, Borg explains the difference between what he calls the earlier paradigm, as understood by fundamentalists and literalists, and the emerging paradigm espoused by those who have struggled with their faith in a scientific world. Read chapter one from this book and see what you think about it.
Speaking of meeting the author ~ see my previous post ~ I not only met Marcus Borg, but got to hear him speak about this book. We asked lots of questions. Now I want to meet Jodi Picoult, if her American tours would only bring her SOUTH occasionally.