Brent D. Ryan, Design After Decline: How America Rebuilds Shrinking Cities, Philadelphia: University of Pennsylvania Press, 2012. http://www.upenn.edu/pennpress/book/14995.html Almost fifty years ago, America’s industrial cities – Detroit, Philadelphia, Cleveland, Baltimore, and others – began shedding people and jobs. Today they are littered with tens of thousands of abandoned houses, shuttered factories, and vacant lots. With …