Exhibition with charity Outside In shows work by "hidden" artists working outside mainstream society

We survey the top five results in key markets, from Old Masters to Post-war and contemporary

The Art Newspaper team assesses the art world's fortunes in a turbulent year

She tells us about the Barbara Hepworth in her bathroom and her regret at not sitting for Warhol

We talk Titian, Constable, Veneziano, Wright of Derby, Van Dyck and, yes, Leonardo, with art historian Bendor Grosvenor. And we get Judd Tully’s views on Miami’s annual art fair.

Work made under former dictatorships mirrors current political unrest

UBS report surveyed 2,475 US-based high-net-worth investors

The entrepreneur tells us about his most recent art buys and which artists he would love to have at his dinner party

Some of the fair's Curios presentations look to traditional craft and wood furniture

Rothschild's El Greco, a candlelit scene by Joseph Wright of Derby and an out of season crucifixion scene lead pre-Christmas sales

Slick marketing produced stupendous sale price for Salvator Mundi, but it sparked revulsion as well as elation

Art, design and antiques fair becomes first cross-discipline event to become part of Art Basel parent company, with plans to expand to US, Asia and the Middle East

Rumour mill has gone into overdrive over record-breaking auction

Inaugural December event brings city's Old Master dealers out from the shadows with exhibitions at more than 30 galleries

From Modigliani’s "indecent" nudes to two shows exploring very different relationships

Thomas Campbell posted an image of the Salvator Mundi before conservation, triggering a row with its former co-owner Robert Simon and Christie’s Loic Gouzer

Our pick of this month's most interesting auctions

OGR's first show remixes the city's collections from antiquity to present, reflecting on the over production of contemporary art and the fact nothing is new

New director Ilaria Bonacossa introduces a drawings section and plans to return Turin fair to its experimental roots

Dalloul Art Foundation investigates authenticity of some Middle Eastern works before museum opening

A stalwart of the London traditional art and antiques scene, the fair opens today, marking the shift from autumn to winter

Hackers are using an email scam to intercept payments between galleries, collectors and others

Last sold 50 years ago, A Dawn depicts French troops marching to trenches through Flanders in 1914

From Cézanne’s ballsy portraits to a Tove Jansson survey showing that she was much more than Moomin’s mother

Responding to complaints that the preview day has become overcrowded, the fair in 2018 will hold two invitation only opening days

From Soutine’s flushed-cheek portraits to Alex Katz’s 10ft-tall sculpture of his wife Ada 

Long established London jewellers will hold sale at Sotheby’s following move to smaller premises, but director insists it is “business as usual”

From John Akomfrah’s video on the threat of climate change to Nick Goss’s paintings of a great flood via Katharina Grosse’s paint-splashed walls

Fictional museum booth will be re-staged at Firstsite gallery after drawing crowds at Frieze, where the gift shop raised £10,000 for UK regional museums