Logic texts intended explicitly for Christians are indeed rare. Even more rare is a volume as cogent and helpful as this study by one of evangelicalism's leading philosophers. Norman Geisler, along with Ronald Brooks, shows how Christians can greatly improve their thinking skills. "To learn the rules of clear and correct thinking," the authors maintain, "is more than an academic exercise. For the Christian, it is also a means of spiritual service" since "the principles of good reason flow from God's very nature." - Back cover.