This book provides a fresh reading of Aquinas’ metaphysics in the light of insights from the works of Frege. In particular, Ventimiglia argues that Aquinas’ doctrine of being can be better understood through Frege distinction between the ‘there is’ sense and the ‘present actuality’ sense of being, as interpreted by Peter Geach and Anthony Kenny. Aquinas’ notion of essence becomes clearer in the light of Frege distinction between objects and concepts and his account of concepts as functions. Aquinas’ doctrine of trancendentals is clarified with the help of Frege accounts of assertion and negation. Aquinas after Frege provides us with a new Aquinas, which pays attention to his texts and their historical context. Ventimiglia development of ‘British Thomism’ furnishes us with a lucid and exciting re-reading of Aquinas’ metaphysics.