A combine painting is an artwork that incorporates various objects into a painted canvas surface, creating a sort of hybrid between painting and sculpture. Items attached to paintings might include photographic images, clothing, newspaper clippings, ephemera or any number of three-dimensional objects. The term is most closely associated with the artwork of American artist Robert Rauschenberg (1925–2008) who coined the phrase to describe his own creations. Rauschenberg’s Combines explored the blurry boundaries between art and the everyday world. In addition, his cross-medium creations challenged the doctrine of medium specificity mentioned by modernist art critic Clement Greenberg. Frank Stella created a large body of paintings that recall the combine paintings of Robert Rauschenberg by jux