Gerald P. Boersma is Chair and Professor of Theology at Ave Maria University. He is author of Augustine's Early Theology of Image (Oxford, 2016) and has written numerous articles in theology, philosophy, and literary criticism. He has held fellowships at Villanova University, the University of Tübingen, and the University of Oxford.

• Introduction: Aquinas and affective knowledge; 1. The tradition of affective Dionysianism; Part I. Natural Affective Knowledge: 2. The union of knowledge; 3. The union of love; 4. Prudential knowledge; Part II. Graced Affective Knowledge: 5. Gifted knowledge; 6. Instinctive knowledge; 7. Faith's knowledge: the gift of understanding; 8. Love's knowledge: the gift of wisdom; Part III. Glorified Affective Knowledge: 9. Indwelling knowledge; 10. Tasty knowledge; 11. Contemplative knowledge; 12. Beatific knowledge; Bibliography.

'This is an important book on Aquinas's conception of union with God. Gerald P. Boersma convincingly demonstrates the essential role of love in connatural and experiential knowledge of God, wherein love shapes the formal character of unitive knowledge. To this end, the author shows the value of both the Dionysian heritage and the classical Thomist tradition. Knowing God by experience or connaturality plays a momentous role in St. Thomas's religious epistemology.' Gilles Emery, University of Fribourg, Switzerland