A number of exceptional American paintings will cross the block on February 12 in Charleston, South Carolina, highlighting Copley Fine Art Auctions’ Winter Sale.

Plus, Chinese artists Xu Zhen and Baiyiyi each had a row with their (former) respective galleries. Guy and Myriam Ullens. Photo Luc Castel, courtesy Ullens Center for Contemporary Art, Beijing.

Guy Ullens, whose collection of Chinese contemporary art was one of the most respected in the world, has died. In 2007, alongside wife Myriam, he cofounded the Ullens Center for Contemporary Art in ...

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