The Logic of God: 52 Christian Essentials for the Heart and Mind. Hardcover book. Like new with the exception of a slightly blunted corner (see photo). Pick-up is in Saanich close to the Monkey Tree and ICBC plaza off McKenzie Ave (McKenzie/Borden St.). Cross-posted. We all have doubts that challenge our faith. We wonder whether the Bible still matters, or whether God is truly as loving and personal as we hope. In his first-ever devotional, The Logic of God, apologist Ravi Zacharias offers 52 readings that explain how and why Christianity, the Bible, and God are still relevant, vital, and life-changing for us today.