I don't make traditional portraits, I capture people living real life.
That's why I admire the work of documentary photographers like Dorothea Lange (USA, 1895-1965) and Sebastião Salgado (Brasil, °1944). Lange's 'dustbowl'-pictures taken during the American depression are part of our collective memoir of that historical time. And Salgado's work is so impressive and numerous that his importance and impact can hardly be overestimated.
One other interesting biography I'd like to mention here is that of Vivian Maier (USA, 1926-2009). Although American, she spent most of her youth in France. The more than 100.000 pictures she made were discovered after her death. They show daily life, street life, ordinary people, poor people, mostly in New York and Chicago.