Reading this book will lead to new insights compelling to an international audience into how cities address the sustainability challenges they face. They do this by not repeating old patterns but by searching for new and innovative methods and instruments based on shared principles of a transitions approach. The book describes the quest of cities on two continents to accelerate and stimulate such a transition to sustainability. The aim of the book is twofold: to provide insights into how cities are addressing this challenge conceptually and practically, and to learn...