Are cities “engines of human innovation” and are “vast increases in standards of living in the past century. . . attributable primarily to the advent of urban living on a large scale”? Geography Professor Dr. Thomas Sigler reviews Edward Glaeser’s 2011 book Triumph of the City: How Our Greatest Invention Makes Us Richer, Smarter, Healthier, and Happier in the most recent issue of Urban Affairs Review. Read Thomas’ review here.