"Most books on logic content themselves with trying to fix our problems in logic. But in this book, Vern Poythress takes a 'God-centered' approach to the subject, which addresses a more foundational problem we have-our problem about logic. What is it? Why is it authoritative? If logic is part of the creation, could God have made a world that had round squares in it? And if logic is untouchable and mysteriously somehow 'over' God, then doesn't that make logic God? In this book, Poythress does a masterful job of showing how our ability to think rationally is grounded in the very nature of God Himself. I heartily recommend this book to every student of the subject." -Douglas Wilson, Senior Fellow of Theology, New St. Andrews College; Pastor, Christ Church, Moscow, Idaho

An accessible introduction to the study of logic (parts 1 & 2), as well as an in-depth treatment of the discipline (parts 3 & 4), built on a robust Christian worldview. Includes helpful charts, diagrams, and review questions.