If you missed the Beeb’s programme about Vivian Maier, you can still watch it for a while. She left 150,000 photographs, most of them not seen in her lifetime. Read about her here:
She left thousands not even developed, and most as negatives from which she never made prints.
It was sheer accident that her life’s work was discovered.
Two years before she died in 2009, Vivian Maier stopped paying the rent on five storage lockers in Chicago. Without her knowledge the contents were sold.
Or sample some of her pictures: from New York, and Chicago, and round and about.