This handbook covers a wide spectrum of issues relating to small states. Chapters in the volume have been grouped under the three main themes of economic, social and environmental issues. The economics sections include chapters dealing with trade, finance and regulatory frameworks, while the social theme covers health, migration, population ageing, as well as overall social wellbeing. The environmental theme examines matters such as measuring environmental performance, natural disasters, the ocean economy, and the validity of the Sustainable Development Goals. One major issue is the definition of small states. As this volume demonstrates, generally speaking, population is used to measure country size in the literature. However, it clearly emerges that there is no real consensus as to the population cut-off point that distinguishes small states from large ones. While the approaches taken by the authors vary, in all cases the chapters draw practical policy implications for small states. The book can therefore be considered as a wide-ranging depositary of information on small states with the aim of deriving policy prescriptions, and thus as an excellent resource for academics, students and policymakers.