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Ellsworth Kelly always seemed like the easiest kind of artist to emulate. The American minimalist shaped his canvases in unique ways, painted them a single color, and hung them on a wall. But he was among the first to experiment with his canvases, layering them and carving them into unconventional shapes. So the Phillips Collection is honoring the artist’s 90th year with an exhibition of his recent works. It’s a fitting tribute for a guy whose career spans six decades but refuses to frame his works. And for those aspiring artists hoping to recreate their own Kellyesque pieces, take notes so you don’t repeat a color combination.

The exhibition is on view Tuesdays, Wednesdays, Fridays, and Saturdays 10 a.m. to 5 p.m., Thursdays 10 a.m. to 8:30 p.m., and Sundays 11 a.m. to 6 p.m. at the Phillips Collection, 1600 21st St. NW. $10–$12. (202) 387-2151. phillipscollection.org.