Norman Kretzmann expounds and criticizes St. Thomas Aquinas''s natural theology of creation which is `natural'' (or philosophical) in virtue of Aquinas''s having developed it without depending on the data of Scripture. The Metaphysics of Creation is a continuation of the project Kretzmann began in The Metaphysics of Theism moving the focus from the first to the second book of Aquinas''s Summa contra gentiles.