Auction introduction: This May, Sotheby’s Contemporary Day Auction is honored to present a spectacular collection of works ranging from the post-war period to today. The sale will provide a rich historical context in which to showcase the most well-established artists from the period such as Helen Frankenthaler, Joan Mitchell, Gerhard Richter and David Hockney, as well as a platform to present an exemplary assortment of works by Contemporary and living artists such as Shara Hughes, Lynette Yiadom-Boakye, George Condo and Christopher Wool.