The protean nature of Francis Picabia’s art is well explored in MoMA’s impressive survey, which is organized chronologically and includes all the major bodies of work that Picabia produced in his career: Impressionist, Cubist, Dadaist, Surrealist, kitschy Figurative, Abstract. The subtitle of the show, “our heads are round so our thoughts can change direction,” hints at the circularity and the extraordinary creativity of Picabia’s oeuvre.