This book presents the long-awaited and in-depth research on the practice and work of the architect, artist and 'orbanist' (global urbanist) luc Deleu (1944, Duffel, B). Deleu has been working on 'orbanism' since the 1970s. This approach to urbanism is critical, sociological and ecological and is highly relevant to such contemporary themes as environmental pollution, overpopulation, food production and individual versus community.