MULTIPLE CITY reflects on current urban development against the background of urban concepts over the past 100 years. It is possible to trace the history of multiple manifestations, parallel strategies and diametrical developments. Urban concepts and urbanist discourse enjoy temporary booms, but leave behind enduring evidence. Today, a wide range of phenomena, interpretations and debates exist in conjunction. This publication documents 16 important topics of urban development on the basis of texts, up-to-date photographs and historical planning material. Well-known authors adopt standpoints on current urban developments in 32 essays. It becomes possible to experience urban development as an exciting discourse that involves us all.