In this book, the city is introduced as a network of networks, and ideal city shape is examined using cutting-edge scientific ideas like scaling and fractals. In contrast to the industrial monotonous model utilized in post-World War II planning, a traditional city with a variety of purposes and sizes is more in line with a sustainable city notion. This book, written for both students and working planners and architects, lays the groundwork for a fresh way of thinking about sustainable urbanism from a structural perspective.