In this timely book, Juval Portugali ties together ancient archaeology with the present to explore the city as a phenomenon that has been rapidly increasing in power and importance since its earliest emergence. He links the walled cities of ancient civilization with modern-day borderless cities, while providing connections between modern nationalism and postmodern urbanism. With a specific focus on two urban revolutions, the first emergence of the city 5,500 years ago and the urban revolution we are currently undergoing, Portugali analyzes the shift to a global population residing predominantly in urban environments. He examines these two urban revolutions from the perspective of the Israeli-Palestinian periphery, in terms of complex-cognitive, self-organized systems. Ultimately, the book addresses how urbanism is becoming the driving force behind human life and consciousness for the first time in history and expresses a new theory of ancient and modern urbanism oriented around socio-spatial evolution. Investigating the interrelation between complexity theory and cognitive theory – and their connection to the city – this book is an enlightening read for scholars and students of urban studies, human geography, political geography and geopolitics, and urban economics. It is also a crucial resource for those researching cities and complexity.