More Worlds to Negotiate beautifully illustrates John Dunlop’s approach to problem solving through a series of fascinating accounts of the complicated social challenges he helped navigate in his long and storied life. Jennifer Berkshire deftly chronicles Dunlop’s ongoing search to engage people with strongly opposing views to create multi-party “mechanisms” that addressed what often seemed intractable dilemmas. Dunlop’s approach offers a hopeful message and guidance to facing the social policy problems of our own fraught times.