Auction record
Rabbit hops to a record $91m at Christie's as Jeff Koons once again becomes the world's most expensive living artist
Post-war and contemporary sale in New York also produced a big sale for Robert Rauschenberg and new records for Louise Bourgeois and Jonas Wood
Hockney sets new auction record for a living artist, but were strings pulled behind the no-reserve sale?
The Yorkshireman's 1970s Californian scene, Portrait of an Artist, sold on the nose at $80m at Christie's in New York last night
Trio of deaccessioned Georgia O’Keeffe paintings could make over $30m at Sotheby's
Modernist works from the Georgia O’Keeffe Museum will be offered in New York in November