Derivative use ranges from the subtle (Cindy Sherman's "stills" echoing Hitchcock's movies) to deliberately heavy-handed (the near re-staging of Sherman's works by Alex Prager). So, what dictates proper use of someone's art?
"The bidders egos are the main reason for the inflated prices," Luis Accorsi told us. "The eagerness to win, one person over the other." Nevertheless, it's hard not to be taken in by the energy in the room.
A new book names Jeff Koons, Damien Hirst, and Tracey Emin as today's art stars -- and identifies Picasso and Duchamp as their predecessors. The connection? All made their personalities inseparable from their art.