Pastors regularly field tough questions about all manner of concerns, theological and otherwise: How can there be three persons in one God? Who does God allow evil? Does the Bible have errors in it? Who Made God? (Zondervan), edited by Ravi Zacharias and Norman Geisler, is an excellent resource, providing well-developed answers to more than 100 tough questions about Christ, the Bible, other faiths, and more. In addition to the editors, contributors include William Lane Craig, Lee Strobel, and others.