This book provides a comprehensive account of Vivian Maier's life and work, known as the "nanny photographer," who gained fame posthumously after her photos were shared online in 2009. It features over 300 of Maier's photographs depicting mid-century American life and includes interviews with those who knew her. Authors Richard Cahan and Michael Williams conducted extensive research, delving into census records and personal interviews, to present new insights about Maier's life from her childhood in the French Alps to her years in the United States. The book celebrates the ten-year anniversary of Maier's photographic discovery.