After looking at Judy Pfaff’s exhibition in Chelsea, don’t miss Dan Flavin’s light pieces at Paula Cooper (534 W. 21), and Sue Williams’ mini-retrospective the at 303 Gallery (547 W. 21). It omits some highlights from her career, but she is a fine painter. As much as she tries to gross you out, she always brings along her painterly finesse. And check out Bard Prof. An-My Lê’s luminous, large-scale photographs taken from the decks of battle ships by this world traveler, at the Murray Guy Gallery (453 W. 17).

You can see an earlier example of An-My’s work front and center at the critically praised The Original Copy: Photography of Sculpture, 1839 to Today at MoMA (11 W. 53), a wide-ranging and original exhibition that also includes Bard Prof. Larry Fink. The show is right next to MoMA’s Matisse, Radical Invention 1913-1917, a not-to-be missed survey of one of the modern master’s most daring artistic periods.