Pop Art is a form of art that depicts everyday objects and scenes in a stylized or exaggerated way using techniques of commercial art. Some key Pop Artists mentioned are Andy Warhol, Roy Lichtenstein, Claes Oldenburg, Robert Rauschenberg, and Tom Wesselmann. The document also provides examples of specific works by these artists and introduces a 2D Pop Art task that involves manipulating portraits using pop art techniques on materials like head shots, photo filters, photocopies, pastels, and laminate.