Professor Walsh's classic text is back in print. First published in 1975, it quickly became the standard work for all Kant courses and is set to do so again in its new printing. Walsh elucidates, connects and assesses the arguments in Kant's Critique of Pure Reason in the form of a continuous essay. He claims that the experience in whose possibility Kant is interested is an experience which is essentially shared or shareable, with the consequence that the Kantian world of appearance is a world of facts, not things. Walsh discusses the Kantian notion of moral belief and its bearing on the possibility of metaphysics, and considers the question of how on Kant's own terms the Kantian philosophy is itself possible. This classic text is now available to a new generation of philosophy students and academics.