Andrew Massad, International Post-War & Contemporary Specialist and Head of the Afternoon Session, discusses a group of works from an Important Private European Collection included in this season's sale on May 12, 2011. The grouping emphasizes the evolution of Pop Art from its genesis in the early 1960s with works by Tom Wesselmann, Robert Indiana and Andy Warhol to its recontextualisation in the post-modern works of Mark Tansey, Damien Hirst and Takashi Murakami and more. (RT: 7:19)