'Imagine how easy Keith Haring is to fake'

Last October Richard Polsky, the San Francisco art dealer who wrote I Bought Andy Warhol, started an authentication service for the artist’s works, driven by the dissolution of the Andy Warhol Foundation for the Visual Arts’ authentication committee four years earlier. Now, Polsky has announced that he is taking on authentication of works by Keith Haring and Jean-Michel Basquiat.