Dorothea Lange (May 26, 1895 – October 11, 1965) was an American documentary photographer and photojournalist , best known for her Depression -era work for the Farm Security Administration (FSA). Lange's photographs humanized the consequences of the Great Depression and influenced the development of documentary photography . Sebastião Ribeiro Salgado Júnior (born February 8, 1944) is a Brazilian social documentary photographer and photojournalist . Between 2004 and 2011, Salgado worked on "Genesis," aiming at the presentation of the unblemished faces of nature and humanity. It consists of a series of photographs of landscapes and wildlife, as well as of human communities that continue to live in accordance with their ancestral traditions and cultures. This body of work is conceived as a potential path to humanity’s rediscovery of itself in nature. He has traveled in over 120 countries for his photographic project