Vivian Maier (February 1, 1926 – April 21, 2009) was an American amateur street photographer who was born in New York but grew up in France, and after returning to the US, worked for about forty years as a nanny in Chicago. During those years she took about 100,000 photographs, primarily of people and cityscapes most often in Chicago, although she traveled and photographed worldwide.
Her photographs remained unknown and mostly undeveloped and unprinted until they were discovered by a local historian, John Maloof, in 2007. Following Maier's death, her work began to receive critical acclaim. Her photographs have been exhibited in the US, England, Germany, Denmark, and Norway, and have appeared in newspapers and magazines in the US, England, Germany, Italy, France and other countries. A book of her photography titled Vivian Maier: Street Photographer was published in 2011.