Mary Ellen Mark — a documentary photographer who, through her incredible enthusiasm, competitiveness and determination, influenced many of her contemporaries — had been sick for months. Yet, in typical fashion and as she’d always vowed, she worked until her last breath, completing her 19th book and putting the finishing touches on a project in time for this year’s 10th anniversary of Hurricane Katrina. Less than 24 hours after the announcement of her passing – she died at home on Monday, aged 75 – tributes from her friends, colleagues and collaborators are pouring in: “Mary Ellen lived hungrily, fully, and had this extraordinary will and determination,” said Melissa Harris of Aperture Foundation, which was working on Mark’s new book Tiny: Streetwise Revisited.