John Kaag is Professor and Chair of Philosophy at the University of Massachusetts, Lowell. He is the author of Sick Souls, Healthy Minds: How William James Can Save Your Life (Princeton, 2020, Finalist, 2021 PROSE Award), Hiking with Nietzsche: On Becoming Who You Are (Farrar, Straus & Giroux, 2018, pbk Picador, 2019, NPR Book of the Year), American Philosophy: A Love Story (Farrar, Straus & Giroux, 2016, NPR Book of the Year, New York Times Editors’ Choice), and Idealism, Pragmatism, and Feminism: The Philosophy of Ella Lyman Cabot (Lexington, 2013), and coauthor with Sarah Kreps of Drone Warfare (Polity, 2015, Choice Outstanding Title).