The Nicene Creed begins with the claim that God is “the maker of heaven and earth, of all that is, seen and unseen.” Does this claim necessitate the claim that God is also the creator of abstract objects—propositions, sets, concepts, etc.—if such there be? In this volume, Paul Gould brings together a first rate collection of scholars articulating and defending a wide range of positions regarding the relationship between abstracta and God. The introduction and the responses to each chapter by the other contributors make this a very approachable and teachable volume.