This book systematically reviews world Internet development over the past 50 years, and comprehensively discusses the great contributions it has made to economic and social advances. Further, it describes the development, status and trends related to the Internet in major countries around the globe in 2019, and provides an in-depth analysis of the latest conditions, dynamics and development trends in key areas, including information infrastructure, information technology, digital economy, digital government, Internet media, cyberspace security, and international cyberspace governance. Moreover, the book further modifies and enhances the Global Internet Development Index System, in order to better show the Internet development strengths and advantages in various countries, and to reflect the global development trends more comprehensively, accurately and objectively. This book reviews the significant developments and summarizes the lessons learned as well as the future challenges. From a global perspective, it offers a vision of building a community with a shared future in cyberspace based on the new concepts, new ideas and new achievements of various countries participating in cyberspace development and construction. As such it is a valuable reference resource for anyone working in Internet related fields, such as those in government departments, internet enterprises, scientific research institutions, colleges and universities wanting to fully understand world Internet development.

Chinese Academy of Cyberspace Studies is directly affiliated to the Cyberspace Administration of China. It aims to become a leading high-end cyberspace research academy in China and the world, providing support in theories, researches, intelligence and technology for key strategic planning, policy and decision making, project construction, and technical innovation in the fields of network security and informatization of China. Chinese Academy of Cyberspace Studies has multiple research institutions with the research fields including network content construction, network security, informatization, international cyberspace governance.