NEW YORK, NY.- Complementing the exhibition Abstract Expressionist New York, in the Werner and Elaine Dannheisser gallery on the fourth floor, is the installation On to Pop, which showcases a selection of Pop Art highlights from the Museum of Modern Arts permanent collection. In 1955, the influential critic Clement Greenberg published the essay American-type painting, which hailed the abstract, non-referential imagery and monumental scale of Abstract Expressionist canvases as the most advanced form of painting then practiced. That same year, the 25-year-old artist Jasper Johns painted an American flag. This familiar, iconic emblem belonged to the world of everyday things. Rendered in wax encaustic and