Mary Ellen Mark, Photographer and Force of Nature – NYTimes.com

Melissa Harris, the editor in chief at Aperture, who edited two books with Ms. Mark and was a close friend, described her as “a force of nature” who pushed herself despite her illness. She described Ms. Mark as someone who cared deeply about people and calling attention to injustice. That meant going back often to her subjects, in order to delve deeply into their lives, relying on that connection to give her work a humane touch.