This document discusses the nature and trends of global tourism, characteristics of key tourist areas, reasons for growth, and challenges to future development. It explores the statistics of global tourism, the contribution of different countries, and the characteristics of tourist destinations. It also evaluates the reasons for the growth of key global tourism generating and receiving areas and compares different emerging global tourism destinations. Additionally, it investigates the role and responsibilities of key international organizations in the development of global tourism and reviews the significance of threats, issues, and challenges to the future development of global tourism.