Auction introduction: The Post-War and Contemporary Art Day Sale on 22 November will present iconic works by the most influential artists of the past century. The sale is headlined by masterpieces from 20th century luminaries such as Morris Louis, Helen Frankenthaler, Andy Warhol and Roy Lichtenstein, alongside defining works by the most acclaimed and innovative artists of the 21st century including Yayoi Kusama, Gerhard Richter, Christopher Wool and Nicolas Party. The sale will highlight exceptional pieces from renowned private and public collections, including Modern Maven: The Collection of Leslie Feely, the Rosa de la Cruz Collection, and Beyond Form: A Revolution in Expression.