Hockney made the headlines, but other artists made waves—or flopped—at November’s auctions

Nicholas Serota and Norman Rosenthal say that selling off the works is a “grave mistake”

Heinrich von Spreti will serve as interim managing director until a replacement is found

A monumental painting of the American West by Emanuel Leutze breaks records while works by Rockwell and Hopper flop

We talk to David Hockney about Portrait of an Artist (Pool with Two Figures), which broke an auction record this week, selling at Christie's New York for $90.3m with fees. Produced in association with Bonhams, auctioneers since 1793.

Broadening the sales strategy for Latin American art has been a positive move for some artists' markets

With only two lots unsold, the auction house nets $362.6m in evening of avid bidding

Monet carries Christie's evening sale while a Magritte shines at Sotheby's, marking an auction record for the Surrealist painter

Lesser known lots still hold plenty of hammer potential

The formal investigation follows his detainment earlier this week related to an ongoing spat with the art dealer Yves Bouvier

The work was one of 18 to have been placed under a court order following a financial dispute unrelated to the auction

Girl With Balloon was meant to shred completely

Sotheby's directors speak out for the first time since Girl With Balloon was half shredded at auction

Modernist works from the Georgia O’Keeffe Museum will be offered in New York in November

We go behind the scenes of one of the most publicised stunts in auction history with our correspondent Anny Shaw who was there that evening. Then we get a tour of Tate Modern's Anni Albers retrospective with its curator Briony Fer, speak to the artist's biographer Charles Darwent and the head of the Josef and Anni Albers Foundation, Nicholas Fox Weber. Produced in association with Bonhams, auctioneers since 1793.

Girl With Balloon canvas ‘self-destructed’ live at Sotheby’s last week in one of the most publicised stunts in auction history

Just when we thought Frieze week was all over, twists and turns provide high drama at Sotheby’s contemporary evening sale on Friday night

Girl with a Balloon (2006) had just hammered at £860,000

The curvaceous M indicates a work that is "subject to right of first refusal"

The mega-collector’s latest lawsuit, filed in New York, escalates his three-year legal feud with Swiss dealer Yves Bouvier

Our pick from this week's fairs and auctions

Move follows a record-breaking breaking year for Paris auctions in 2017

The auction of art, antiques and works of art was cancelled an hour after its supposed start time following private deal

The auction house hopes the works will surpass previous records by several million

Our pick from this week's auctions and exhibitions

In September 2008, Damien Hirst sold £111m of art as Lehman Brothers collapsed, triggering a financial crisis. A decade on, what has changed?

American collector's works, from Doig to decoy ducks, are to be offered across ten sales at Sotheby’s over the next eight months

Auction house is enlisting dealers and curators to promote the legacy of the polymath who is believed to have cursed his collection

Just two paintings significantly damaged the auction house's bottom line in the second quarter

No big hitters, but overall quality and new buyers from Asia and Latin America buoyed £42.6m auction, with £5.3m record for Canova set in day sale