Aaron Zimmerman is Professor of Philosophy at University of California, Santa Barbara, and the author of two books: Moral Epistemology (2010) and Belief: A Pragmatic Picture (2018).

Karen Jones is Senior Lecturer at the University of Melbourne. She has written extensively about trust, what it is, and when it is justified. She is the coeditor, with Francois Schroeter, of The Many Moral Rationalisms (2018). Much of her work is from a feminist perspective.

Mark Timmons is Professor of Philosophy at the University of Arizona. He specializes in Kant's ethics and metaethics. A collection of his essays on Kant, Significance and System: Essays on Kant's Ethics was published in 2017. He is currently at work on two books: one on Kant's doctrine of virtue and another (with Terry Horgan) on moral phenomenology.

Preface Introduction Section I: Science 1 The Quest for the Boundaries of Morality 2 The Normative Sense: What is Universal? What Varies? 3 Normative Practices of Other Animals 4 The Neuroscience of Moral Judgement 5 Moral Development in Humans 6 Moral Learning 7 Moral Reasoning and Emotion 8 Moral Intuitions and Heuristics 9 The Evolution of Moral Cognition Section II: Normative Theory 10 Ancient and Medieval Moral Epistemology 11 Modern Moral Epistemology 12 Contemporary Moral Epistemology 13 The Denial of Moral Knowledge 14 Nihilism and the Epistemic Profile of Moral Judgment 15 Relativism and Pluralism in Moral Epistemology 16 Rationalism and Intuitionism-Assessing Three Views about the Psychology of Moral Judgment 17 Moral Perception 18 Moral Intuition 19 Foundationalism and Coherentism in Moral Epistemology 20 Moral Theory and its Role in Everyday Moral Thought and Action Section III: Applications 21 Methods, Goals, and Data in Moral Theorizing 22 Moral Knowledge as Know-How 23 Group Moral Knowledge 24 Moral Epistemology and Liberation Movements 25 Moral Expertise 26 Moral Epistemology and Professional Codes of Ethics 27 Teaching Virtue 28 Decision-Making Under Moral Uncertainty 29 Public Policy and Philosophical Accounts of Desert 30 Religion and Moral Knowledge