In Internet Architecture and Innovation, Barbara van Schewick explores the economic consequences of the Internet architecture, offers a detailed analysis on how it affects the economic environment for innovation. Van Schewick explain the design principles of the original Internet architecture based on modularity,? Layering, and the argument end-to-end? And show how they form the original architecture. He analyzes in detail how the innovation affected the original architecture in particular,? Development of new applications? And how to change the architecture will affect the innovation of this kind. Van Schewick concluded that the original architecture of the Internet maintained application innovation. current changes that deviate from the original principles of Internet design innovation reduces the amount and quality of applications, the ability to restrict users to use the Internet as they want, and threaten the ability of the Internet to realize the potential economic, social, cultural, and political.