Jon Elster is Professor and Chaire de Rationalite et Sciences Sociales at the College de France. A fellow of the American Academy of Arts and Sciences and Corresponding Fellow of the British Academy, he is a recipient of fellowships from The John Simon Guggenheim Foundation and the Russell Sage Foundation, among many others. Dr Elster has taught at the University of Chicago and Columbia University and has held visiting professorships at many universities in the United States and in Europe. He is the author and editor of thirty-four books, most recently Closing the Books: Transitional Justice in Historical Perspective, Elementary Social Science from an Advanced Standpoint, and Retribution and Restitution in the Transition to Democracy.