Barbara Kruger is best known for her silkscreen prints where she placed a direct and concise caption across the surface of a found photograph. Her prints from the 1980s cleverly encapsulated the era of "Reaganomics" with tongue-in-cheek satire; especially in a work like (Untitled) I shop therefore I am (1987), ironically adopted by the mall generation as their mantra. As Kruger's career progressed, her work expanded to include site-specific installations as well as video and audio works, all the while maintaining a firm basis in social, cultural, and political critique. Since the 1990s, she has also returned to magazine design, incorporating her confrontational phrases and images into a wholly different realm from the art world. Associated with postmodern Feminist art as well as Conceptual art, Kruger combines tactics like appropriation with her characteristic wit and direct commentary in order to communicate with the viewer and encourage the interrogation of contemporary circumstances.

http://www.artnet.com/artists/barbara-kruger/not-stupid-enough-8ujBZPiYBkE9T6UL_kYUyw2