Garry Winogrand’s 25-year retrospective, currently on display at the National Gallery of Art in Washington, D.C., includes Winogrand’s iconic images of everyday Americans—New Yorkers out on the street, lone figures in busy airports, and eerie scenes of western suburbia. But about one-third of the show comes from Winogrand’s vast stockpile of unpublished work. Winogrand, who died suddenly at age 56, left behind 2,500 rolls of film that had never been developed and 6,500 rolls of film that had been developed but never made into contact sheets. At 36 frames per roll, that’s well over a quarter of a million images that Winogrand made but never looked at.

Winogrand was a voracious shooter, always more interested in taking pictures than