In 2007 at the Dutch Royal Academy of Sciences in Amsterdam, a colloquium on new perspectives on games and interaction brought together researchers on games in logic, computer science, linguistics, and economics in order to clarify their uses of game theory and identify promising new directions for the field. This volume is a collection of papers presented at the colloquium, and it testifies to the growing importance of game theory as a tool that can capture concepts of strategy, interaction, argumentation, communication, and cooperation amid the disciplines.