Charles Siegel sent me a copy of his book, The Humanists versus the Reactionary Avant Garde to review. It's worth reading with Carroll William Westfall's Architecture, Liberty and Civic Order. 

Siegel's book explains the failings of modernist architecture in aesthetic, physical, and cultural terms. He points out its failings in terms of scale and design in ways that are similar to the ones that I mentioned in my post on de-structured space. Many of these are failings that we've known about since Form Follows Fiasco. Some of them focus on planning matters that New Urbanism has been dealing with. Siegel, however, is more critical of Clarence Perry's Neighborhood Unit and what we might call the commodification of urban life.