Buyer bidding through advisors Gurr Johns, combined with strong Asian interest, buoys London Impressionist and Modern art sales at Christie's and Sotheby's

From the Deutsche Börse photography prize to Rockefeller's collection including Gauguin and Picasso

Our pick of objects from this month’s most interesting auctions

New director Jagdip Jagpal pledges to maintain at least 70% Indian galleries at fiercely individual Delhi fair, where quality is rising but still patchy

Roaming mini-fair's second edition moves from Monaco to service wealthy skiing crowd

Subcontinent’s art scene expands with the help of private money as government cleans up the economy and simplifies tax

The increase comes from a rise in new online buyers and one very expensive Leonardo

London and New York antiques dealership will now form new private sales division of UK auctioneer Dreweatts, based in Berkshire and Pall Mall

Fair known for its eclectic mix keeps both dealers and collectors coming back

Exhibitions to seek out at Manhattan's annual gallery trail, which now embraces paintings and sculptures

Long-established Brussels fair bolsters more patchy modern works on show to complement strength in haute époque, ethnographic and ancient art

Thomas Dane is the latest in a string of galleries to open spaces in the country, but are there are enough high-level collectors to sustain them?

$450m Salvator Mundi sale too late to be included in new book, The Orange Balloon Dog, but would have filled several chapters, economist says

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