Discovering Vivian Maier - an amateur photographer

Last year, in Chicago, John Maloof bought at auction the entire photographic oeuvre of an amateur and unheralded street photographer, Vivian Maier.

The collection includes 100 000 exposed frames with 600 undeveloped rolls of 120 film. It is a fascinating discovery. More intriguing is Maloof's efforts to garner recognition for Maier's work.