’This is a remarkable book in two ways. First, because the contributions - all by leading world experts in the field - collectively represent the definitive text on the art and science of evaluation in planning. Second, because they have been written to celebrate the lifetime achievement of the greatest single contributor to this important field, Professor Nathaniel Lichfield. Though not a contributor, his work permeates the entire book.’ Professor Sir Peter Hall, Bartlett Professor of Planning and Regeneration, University College London, UK '...a significant contribution to our knowledge. For policymakers, scientists and planners this book is mandatory reading.' Scienze regionali