Errol Lord is Professor of Philosophy at the University of Pennsylvania. He works in a broad range of areas connected with normativity, including ethical theory, epistemology, and aesthetics. His first monograph, The Importance of Being Rational, appeared in 2018 from OUP. In 2016, OUP published Weighing Reasons, a collection he co-edited with Barry Maguire. His essays have appeared in Mind, Philosophy and Phenomenological Research, Oxford Studies in Metaethics, and Ergo, among other places.