The architecture firm Ortner & Ortner Baukunst with branches in Vienna, Berlin, and Cologne was founded in 1987 by Laurids and Manfred Ortner and has its roots in the architecture group Haus-Rucker-Co, which was part of the vibrant Viennese architecture and art scene in the 1960s and 70s. An artistic approach is still a trademark of the internationally active firm now named O&O Baukunst.

A direct response to the setting and atmosphere of the surrounding urban environment is also one of the focal points of the architects. The book describes the development of the O&O world of ideas, focusing on the latest buildings and projects.