The Reason for God: Belief in an Age of Skepticism, by Tim Keller.
Keller is a fellow Presbyterian pastor in New York City and is one of the outstanding leaders of my denomination. I listen to all his sermons and learn much from them, so I'm excited about his book. It's a Christian response to a number of questions that skeptics and doubters ask about the faith. Questions like why God allows suffering, how a loving God could send people to hell, how Christians can lay exclusive claim to truth, and the like.
You can learn more about the book at this website.