This book's objective is to present a comprehensive, theoretical, practical, and adaptive approach to understanding the issues involved in eco-city planning and green community development. It builds on recent advances in urban theories, environmental science, architectural design, engineering, and geospatial information technologies to provide readers with the scientific foundation needed to understand the major visionary ideas about new urban forms. This book provides a basis of knowledge in planning theory and natural science and a major review of urban forms that have evolved over the past century; its primary emphasis is to describe and explain emerging approaches, methods, and techniques for eco-city. This book also responds to the key questions outlined at the beginning of this introduction: What are the theoretical foundations and historical views of eco-city and green community? What is a green and eco-friendly urban form? How can we find the appropriate approaches to build eco-city and green community? What international experiences and lessons can we learn from?