This show starred Paloma Picasso’s X, the graceful, jaunty, terribly chic letter that adorns her designs. Her X’s were everywhere — on models’ scarves, sunglasses, key chains, purses ...

An exhibition at Gagosian includes never-before-seen works from the personal collection of Paloma Picasso, who helped organize the show. Paloma Picasso with a work by her father, “Femme assise ...