In this intellectually rigorous yet accessible work, Jesuit philosopher George P. Klubertanz introduces readers to the foundational questions of metaphysics and natural theology. Being and God provides a systematic exploration of the philosophy of being—examining what it means for something "to be"—and moves from these ontological fundamentals to a reasoned defense of the existence and nature of God. Drawing on the rich Thomistic tradition while remaining engaged with modern philosophical concerns, Klubertanz offers a clear and structured guide through topics such as essence and existence, potency and act, causality, and finality. The book culminates in a rational argument for God as the necessary, self-subsistent ground of all being. Written for students and general readers seeking a bridge between philosophy and theology, Being and God stands as a classic introduction to metaphysical realism and theistic thought. It remains an essential starting point for anyone seriously interested in the intersection of reason and faith .