Malcolm Murray (Philosophy) has published two books this year. The Moral Wager: Evolution and Contract (Springer) illuminates and sharpens moral theory by analyzing the evolutionary dynamics of interpersonal relations in a variety of games. Liberty, Games and Contracts: Jan Narveson and the Defence of Libertarianism, edited by Murray, brings together significant critics of Jan Narveson, one of the most important contemporary defenders of the libertarian political position. (Ashgate).