The philosophy of Immanuel Kant is the watershed of modern thought, irrevocably changing the landscape of the field and preparing the way for all the significant philosophical movements of the nineteenth and twentieth centuries. This volume, which complements The Cambridge Companion to Kant, covers every aspect of Kants philosophy, with a particular focus on his moral and political philosophy. It provides the broadest and deepest introduction currently available on Kant and his place in modern philosophy and will prove invaluable to those coming to his work for the first time.