Their recent studies for books and exhibitions examine the way space is made or controlled. The Arsenal of Inclusion/Exclusion, an exhibition and forthcoming book, is a dictionary of 101 “weapons” that developers, real estate agents, architects, and planners use to control access to spaces and communities. These weapons range from physical objects, like highways, to zoning codes and racial covenants. For the study “The Dream of a Lifestyle: Marketing Master Planned Communities in America,” the firm requested marketing materials from every master planned community built or planned between 2006 and 2008. The hundreds of brochures and other materials offer a compelling survey of current exclusionary practices that the firm suspects have been disrupted by the ever-widening foreclosure crisis. “We have a very broad definition of what architecture is,” D’Oca commented.