folk art          
noun uk/ˈfəʊk ˌɑːt/ us/ˈfoʊk ˌɑːrt/
 [ U ](尤指乡村)民间艺术 
pictures, objects, etc. that express something about the lives and feelings of ordinary people in a particular group or country, especially those living in the countryside
  Carousels are a fine example of American folk art.  旋转木马是美国民间艺术的典范。 
 Catholic devotional pictures and statues rub shoulders with African folk art carvings.  天主教的祈祷图片和雕像与非洲民间艺术雕刻品交织在一起。 
  [ C ](尤指乡村)民间艺术活动 
an activity such as painting, music, or dancing that expresses something about the lives and feelings of ordinary people in a particular group or country, especially those living in the countryside
  The city is noted as a centre of folk arts and crafts, especially handweaving. 这座城市是著名的民间工艺品中心,尤其是手织工艺品。 
 - More examples
 - The market for folk art is hot.
 - They have supported the American Folk Art Museum in Manhattan for decades.
 - He has written several works on the traditional folk arts of southern Arizona.
 - Jazz was perhaps never really a folk art.