The smart city is a mode of urban governance in the era of Big Data and the Internet. This book introduces the development of urbanization and urban informatization in China, and establishes the system framework of the smart city. It expounds the content of current research and methods of urban informatics, and investigates its relationship with other urban sciences. It also analyzes the development of the smart city in China and abroad, identifies major problems in the construction of smart cities, and proposes measures for the development of the smart city. This book is designed for city leaders and city information executives, providers of smart city products and services, and graduate students majoring in computer applications, information management, public management, and other related fields.