What does Kant have to tell us about International Relations? In Kant’s International Relations: The Political Theology of Perpetual Peace (University of Michigan Press, 2017), Sean Molloy, a Reader in International Relations at the University of Kent, offers a close reading of key works by Kant to reframe our understanding of the modern world. Written in dialogue with theories of cosmopolitanism and democratic peace theory, the book radically challenges how we understand Kant by focusing in detail on his work and his words. The book works through the breadth of Kant’s ideas, as well as dealing with specific texts in depth. As a result it will be of interest beyond International Relations, for scholars interested in any element of Kant’s philosophy including theological questions, his ideas on judgement, and ultimately what it is to be human.