August Sander was a German photographer renowned for his profound depiction of social strata. His series 'People of the 20th Century' documented the diversity of German society, from workers to artists, from farmers to nobility. Sander's work had a profound impact on 20th-century photographic art.
Source: August Sander: photographs of an epoch, 1904-1959 : man of the twentieth century, Rhineland landscapes, nature studies, architectural and industrial photographs, images of Sardinia : [exhibition]