This revised edition of Meta Berghauser Pont and Per Haupt’s 2010 volume attempts to analyze the connections between density, urban form and performance—a prerequisite for understanding and successfully predicting the effects of specific designs and planning proposals. Its main focus is the relationship between types of urban environment and data such as amount, size and physical properties. Berghauser Pont and Haupt demystify the use of image-based references and concepts such as “compact city” and “park city” by challenging the reliability of such concepts and critically examining the possibility of redefining them through the concept of density. Spacematrix will be of interest to architects as well as urban planners and designers, but is equally relevant for other professionals working in the field of urbanism, such as developers, economists, engineers and policymakers.