Book excerpt: Limited land and resources, along with the overexploitation of tourism and multiple other factors, make peripheral and ultra-peripheral territories relevant cases for studying governance and sustainable development. This book presents case studies of European and Mediterranean regions to study regional development and territorial sustainability, strategic planning, and territorial management and governance. Written by experts in the field, the chapters contained herein provide the reader with a deep understanding, from several perspectives, of the dynamics, challenges, and opportunities of tourism in these specific territories.