From its late nineteenth century origins, the concept of protected areas has increased in scope and complexity. It now has to come to terms with the twenty first century world of neo-liberal politics, performance metrics and the growing and complex demands of tourism. This international collection of papers explores how this might be done, detailing the issues involved, and the value and values that protected areas have for economies, peoples and environments. Special attention is given to World Heritage Sites, tourism planning and their communities, to the growth of private protected areas, and to the health values of protected areas. Other subjects include private sector business involvement in protected areas, concessions policy experiments, and how the work of the world’s largest protected area agency, the US National Park Service, is adapting to changing political and market demands, and to the challenges of sustainable development. It concludes with a searching interview with a member of UNESCO’s World Heritage Committee. The chapters were originally published in a special issue in the Journal of Sustainable Tourism.