[Fritz Kahn's The Life of Man: Production and Transcription of a Bestseller].

This paper investigates the production and circulation of the illustrations in Fritz Kahn's five-volume series The Life of Man, one of the most popular medical publications in the German interwar period. In 1912 Kahn (1888-1968), together with a staff of illustrators, began producing what would later become his best-selling series. Illustrations of this series (in particular, the poster The human factory/Der Mensch als Industriepalast) were widespread throughout Germany during the Weimar Republic. With the rise of National Socialism, Kahn was forced to emigrate in 1933. While his books were forbidden by the Nazi regime, their illustrations continued to play an important role in popular scientific discourse: they reappeared in the Nazi health-education programme and were adapted for Kahn's publications in exile at the same time. This paper discusses how their production process and collective authorship made this complex and heterogeneous reception possible.