I have wide-ranging research interests. In my writing, I have in the past mainly focused on metanormative issues concerning norms, reasons, value, and virtue, across ethics, epistemology, and (more recently) aesthetics. I am presently writing a book on the ethics of photography (presentations and draft chapters are available).
A number of my published papers are concerned with defending a particular theory concerning the nature of normative reasons (reasons to do things, believe things, feel things, and so on), but I have also published articles and book chapters on moral knowledge, virtue, ethical theory, moral skepticism, the history of moral metaphysics, photography and artistic luck, and Confucian ethics.
My first book builds on my earlier work on reasons, but is broader in scope, as it is about the relationship of normative ethical theory to ordinary virtue. My interest in reasons and the nature of normativity led to the creation of an Oxford Handbook, while my interest in ethics in general lies behind my coediting and coauthoring a textbook on the history of ethics (with Roger Crisp), as well as a long-standing commitment to running an ethics seminar series at Boston University.