With the discovery of her archive in a thrift auction house in 2007, Vivian Maier’s posthumous trajectory from relative obscurity to one of the great American photographers of the 20th century is a story of a singular consistent talent. From the mid 1950s throughout her adult life she worked as a nanny between New York and Chicago, and it was during this time that she created a huge body of photographs and films recording every day street life, often including her own self portrait and moments of fleeting reflection within the cityscape.