Berislav Marusi¿ is Senior Lecturer in Philosophy at the University of Edinburgh. Before that, he taught at Brandeis University for 13 years. He has written on agency, the emotions, skepticism, and interpersonal epistemology. He is currently working on a book about Sartre, and he is a committed analytic existentialist.

Mark Schroeder is Professor of Philosophy at the University of Southern California, where he is the founding director of the Conceptual Foundations of Conflict Project. His work has focused on the nature of moral thought and reality, the foundations of norms on belief, and on the consequences of what it means to be a person for the structure and dynamics of interpersonal relationships and interpersonal conflict. This is his first public confession to fascination with existentialist ideas and themes.