Interpreting the is an important task because it helps reveal how Kant himself tried to correct and develop his critical philosophy. It also sheds light on the foundational role of the three , as well as the unified philosophical system that Kant sought to establish. The chapters in this volume address a range of topics relevant to the epistemological and theoretical problems raised in the , including the transition from the to physics as an answer to a deficiency in critical thought; the notion of ether and, more specifically, its transcendental deduction; self-affection and the self-positing of the subject; and the idea of God and the system of ideas in the highest standpoint of transcendental philosophy. will be of interest to upper-level students and scholars working on Kant.