sentences:  In 2010 Joffe debated whether "art fairs are about money" with Louisa Buck, Matthew Collings, and Joffe for the motion and against the motion Norman Rosenthal, Richard Wentworth, Matthew Slotover.Joffe claims that his criticisms of Frieze Art Fair led to his work being banned from the fair in 2010.Matthew Slotover, director of Frieze Art Fair had taken part in the debate on art fairs.