Why do people obey the law? And why do states abide by their international commitments? These are among the questions raised in this important book. The setting is the Barents Sea, home to some of the most productive fishing grounds on the planet, including the world’s largest cod stock. Norway and Russia manage these fish resources together, in what appears to be a successful exception to the rule of failed fisheries management: stocks are in good shape, institutional cooperation is expanding and takes place in a constructive atmosphere. The author argues that post-agreement bargaining helps activate norms and establish standard operating procedure that furthers precautionary fisheries management.