This publication presents an overview of the status of tourism in Small Island Developing States (SIDS), while providing evidence of the key importance it has for the sustainable development of many islands and for the achievement of the Millennium Development Goals. It draws together and updates a wide range of evidence on tourism performance and impacts and on the factors affecting the future development of the sector in SIDS, and provides policy orientations, guidelines and other tools to the various tourism stakeholders in SIDS on how to address these challenges and develop and manage tourism in a sustainable manner for the benefit of their population. This publication is also available in French: Défis et opportunités de l'expansion du tourisme dans les petits États insulaires en développement (ISBN French version: 978-92-844-1540-3)