Outsider artist James Castle created his work in a bubble—he was profoundly deaf and spent his life in seclusion. When, in 2013, the Smithsonian American Art Museum acquired 54 Castle pieces and assembled the largest public exhibition of his work, curators were quick to identify his importance to the canon of American art. As an upshot of his rural isolation, Castle’s work approaches the world around him from a perspective few of his era could reproduce. His pieces are made from everyday objects he found in his immediate vicinity—advertisements, periodicals, and packaging, smudged and smeared with soot and modified with sticks and string. However crude it seems, Castle’s work represents subjects he held dear to him: the farms of his home in Garden Valley, Idaho; family members; and 20th-century popular culture. But if withdrawing from the outside world makes you stir-crazy, not creative, get out and see this collection of quiet interior and exterior landscapes. The exhibition is on view daily 11:30 a.m. to 7 p.m. to Feb. 1 at the Smithsonian American Art Museum, 8th and F streets NW. Free. (202) 633-7970. americanart.si.edu.