With the press of a button, a picture is taken. In an instant, now becomes then. In the decades preceding the advent of Polaroids and digital photography, picture-taking was a thrilling and nerve-racking event. Now is Then: Snapshots from the Maresca Collection features 150 images from the golden age of snapshot photography, the 1920s through the 1960s, selected from a collection of nearly 600 snapshots assembled by a leading expert on vernacular art, Frank Maresca, who has donated them to the Museum over the past decade. These vintage photographs are being shown along with a sampling of recent digital snapshots sent in by members of the public.