Gottfried Knapp worked as a film critic for ten years before starting as art, architecture and film editor for the arts page of the Süddeutsche Zeitung. His numerous publications on art-historical and architectural themes include monographs on individual buildings and catalogues about painters, sculptors, draughtsmen and photographic artists. Knapp has won several journalism prizes in the fields of architecture and monument preservation.

Richard Bryant is one of the best-known architectural photographers, working all over the world. He is the only photographer with an honorary fellowship of the Royal Institute of British Architects.

Christian Richters studied communication design at the Institut für Architekturgeschichte und Architekturtheorie at the Bergische Universität in Wuppertal. Christian Richters studied communication design at the Folkwangschule in Essen. He is one of the most sought-after architecture photographers in Europe. To date he has been represented in the Opus series by nine volumes, including ones about the embassies of the Nordic countries and the Bode Museum in Berlin, the Nieuwe Luxor Theater in Rotterdam and the BMW Welt in Munich.