This volume has presented a study of new industry formation within the spaces and landscapes of the metropolitan inner city. The broad intention has been to place sequences of innovation and restructuring observed since the 1990s within broader narratives of contemporary urbanism, with a view to investigating the theoretical implications of these recurrent processes of change. Primary data for the study were generated from a program of field research among exemplary sites in four instructive cities – London, Singapore, San Francisco, and Vancouver – substantially augmented by insights derived from the scholarship of many colleagues working across a broader range of cities.