'Typology', volume 2 of the new series 'Christ & Gantenbein Review', presents more than 150 buildings located in Rome, New York, Hong Kong and Buenos Aires that have been analysed by the chair of Emanuel Christ and Christoph Gantenbein at the Swiss Federal Institute of Technology Zurich. This selective and subjective inventory of metropolitan and essentially anonymous 20th-century building production provides a basis for urban project creation. In this new book, the buildings are documented with floor plans, axonometric projections, recent photographs and key information. The theoretical essay by Emanuel Christ and Christoph Gantenbein and four texts by other authors explain the interactions between the contexts, especially the governing urban rule sets and the buildings, and show the potential for the design of a contemporary urban architecture. Text in English and German