The study of small states in international relations has evolved from explaining anomalies, puzzles, and residual activity in the international system of states, to engaging some of the most important issues in the study of international political economy, international security, and international society. From the postwar contributions of Annette Baker Fox, and the paradoxes of small state power identified by Peter Katzenstein, Robert Keohane, and David Vital; the effects on international agenda-setting of coalitions of small states; and the capacity for small states to play a role in regional governance structures, to the "social power" of small states seeking to influence international norm selection and recent studies of identity and reputation by Iver Neumann and Jon Mercer, the literature on small states oaers valuable insights to the study of power in international politics. The lessons from Lilliput, as the scholars assembled in this volume attest to, have moved the study of the small from the periphery to the center in the study of international relations. First wave theorists established why it is relevant to shift attention away from large states to other less prominent areas of the international system. These scholars were less concerned with how small states defy expectations of great power theories than with getting these states on the intellectual map of international relations theorizing. Once on the map, second-wave theorists put forward alternative theoretical arguments for small state agency. Third- And fourth-wave theorists no longer question the relevance of small states in the international system and are further refining arguments concerning relative capacities of small states, reputation and image in international relations, and the role of small states as global agendasetters. The classic contributions to these waves of theorizing are reviewed in this chapter as a reminder of how far small state theorizing has come, and where it is headed. For many scholars, The Power of Small States (1959) is the classic com- parison of small states, and one of the early contributions to what we now refer to as the international relations literature on small states. Although the starting point of the study is the explanation of how a group of five small states (Turkey, Finland, Norway, Switzerland, and Spain) resisted great power belligerence, the underlying assumptions of the study are pessimistic: small states should not be able to resist more powerful states. The study, which focuses on the decision-making of small state leaders and the pressures of great power politics, is informed by the principles of the Realist School of International Relations. The author does, however, open the possibility of opportune moments in great power politics when small states can exploit the structure of the system, and/or influence the calculations of larger powers. And even if they fail to play this role, the idea of the relative capacity of the small state is introduced in the European context. According to Annette Baker Fox, "the continued existence and, indeed, startling increase in the number of small states may seem paradoxical in the age of superpowers and the drastically altered ratio of military strength between them and the rest of the world. It is well known that the ability to use violence does not alone determine the course of world politics. Some of the other determinants can be observed with exceptional clarity in the diplomacy of the small powers which were striving to stay out of World War II." Subsequent comparisons shifted away from the diplomatic maneuvers of small state leaders against superior military might, to the paradox of how small states succeed in the international political economy. Again, the assumption is pessimistic: small states are "price takers" and inherit the rules of the game. The odds are against smaller economies, yet economic performance indicators are impressive. In some contributions, small states outperform larger states; whereas in other contributions, small states are embedded in hierarchies within which few options exist. The larger, more powerful states in the international system increasingly share the global challenges of "smallness" as suggested in Peter Katzenstein's 1985 volume, Small States in World Markets. Although Katzenstein's analysis focused on how governments develop strategies to cope with enhanced market competition, the rapid revival of European integration engages both small and large states in the EU, and in the international political economy. International terrorist threats have elevated the successes of some small states (i.e., Iceland) in developing technological solutions to monitoring criminal activity at airports and border crossings. New security threats, such as threats to human security associated with an environmental catastrophe, require learning from societies where a concerted commitment to environmentalism is in place. In many issue areas following the end of the Cold War, hegemons are responding to a global agenda, as opposed to establishing the rules of the game, as we witnessed in the establishment of the post-World War II regimes governing the world economy-from Bretton Woods to GATT. Some small states become the "tail that wags the dog," in issue-areas such as global whaling policy. Not all small states are perceived as important to the study of international relations. In fact, the field is "Euro-centric," reflecting the pathdependent development of a unique group of well-situated states in the international division of labor.2 Yet even within the periphery, some small states can and do "break out" of the cycle of dependence and provide examples of Lilliputian success. Learning from the capacity to influence even when the odds are against another party is an enduring lesson for students of international relations. As are the limits of the most powerful actors of the system, who are constrained by their size, institutions, or policy legacies in intervening abroad; or tracking down terrorists who threaten the security of U.S. airspace. The inversion of power (strong is weak; weak becomes strong) is a fascinating dimension of international study. This book compiles some of the major scholarly contributions to the study of small states in world politics. Inevitably, important voices have not been heard, and authors who have written on the role of small states have received only a footnote. It is not the intent of the editors of this collection to provide an overview of every word written on the subject, but rather to share with our students and colleagues those contributions we have found to be compelling in our study and teaching of alternative approaches to international relations. Two Europeans and two Americans edited this collection, with an effort to incorporate both sides of the Atlantic in developing our list. Theoretical developments in the field of international relations provide new opportunities for small state theorizing. For example, constructivist approaches to international relations encourage a broader conception of power to include what a state perceives its power to be. By incorporating non-objective measures of power, this approach (not by intent, but by effect) expands the scope of legitimate topics for investigation in international relations. Recognizing how and why states pursue national interest and national identity in world politics, and the role of reputation in international society, has engaged scholars researching both small and large states. What are the enduring lessons from the small state literature? In conclusion, we outline a few of the important insights suggested by this burgeoning literature. Copyright