"Ann Marks is the definitive expert on Vivian Maier. Where our documentary leaves off, she picks up. Through her meticulously organized and exhaustive research, Marks paints a complete historical profile of the photographer." -John Maloof, Director & Producer, Academy Award Nominated Film, Finding Vivian Maier Author Ann Marks unravels the mysteries surrounding the life of Vivian Maier, the nanny who lived secretly as a world-class photographer. The only person in the world granted access to 140,000 photographs, home movies and tape recordings, Marks writes the definitive biography, placing the photographer's work in the context of her life experiences and persona. Based on clues found in pictures, genealogical records and interviews with those who knew the photographer during each stage of her life, the biography is rigorously researched and complete. Unlike typical academic prose, Marks' treatment is clear, engaging, and relatable, with a narrative that unfolds like a bestseller. Revelations include a traumatic New York childhood with a family at such odds, its ten members were buried in nine different cemeteries.

An emotionally damaged Maier overcame early constraints through fortitude, intellect, and immense creative resources, to live an independent, fulfilling life on her own terms. Vivian Maier Developed relates the arc of the photographer's life to her body of work, illustrated with over 500 images, both favorites and unseen, offering an inspiring tale of a socially conscious, uniquely complex and highly talented woman.