Aquinas on God presents an accessible exploration of Thomas Aquinas' conception of God. Focusing on the Summa theologiae – the work containing Aquinas' most systematic and complete exposition of the Christian doctrine of God – Rudi te Velde acquaints the reader with Aquinas' theological understanding of God and the metaphysical principles and propositions that underlie his project. Aquinas' conception of God is dealt with not as an isolated metaphysical doctrine, but from the perspective of his broad theological view which underlies the scheme of the Summa. Readers interested in Aquinas, historical theology, metaphysics and metaphysical discourse on God in the Christian tradition will find this new contribution to the studies of Aquinas invaluable.