John Callanan is a Reader at the Department of Philosophy at King’s College London. His research interests are in the history of philosophy, especially Early Modern Philosophy and Kant. He is the author of Kant’s Groundwork of the Metaphysics of Morals (EUP, 2013) and the co-editor of Kant and Animals (OUP, 2020). He is currently thinking about the role of concept-formation and the relationship between geometry and metaphysics in the Critique of Pure Reason. His other major research interest is in the history of ethics, and in particular the so-called British Moralists of the 18^th Century. He has a book coming out with Princeton University Press on Bernard Mandeville. He is the Reviews Editor for Philosophy, and is a member of the executive committee of the British Society for the History of Philosophy.