Highlights include works by Cady Noland, Kerry James Marshall and Lyonel Feininger

Aided by Portugal's rising GDP and wealthy foreign investors, ArcoLisboa has provided a shot in the arm to capital's art market

Leaning on romance of Rockefeller name and its appeal to international and first-time buyers, the auction house triumphed in its marathon week of sales

The heads of Christie's, Bonhams and Phillips speak on market shifts, challenges and why they believe their model will succeed

Painting is “one of the most important” by the Impressionist artist to be sold in London in the past 20 years

Details yet to be finalised, but the fair is also looking at how to deal with “increasingly erratic weather” after heatwave sent exhibitors into meltdown

Evening auction featuring the family's most valuable works set new records for Monet and Matisse

Sit back, relax, and follow the action from tonight's evening sale via tweet

The painting, estimated to bring $30m, is a key lot in the auction house's upcoming evening sale in New York; plaintiff vows to appeal

Ahead of the sale of the David and Peggy Rockefeller collection at Christie’s this week, the family's archivist examines their approach

Every work by the late UK artist up for auction—from stage designs to book covers—is an artist’s proof

Second edition of Manhattan fair might lack Frieze's contemporary edge, but it has grown-up appeal

First-quarter earnings show aggregate auction sales of $667m, affirming market's strength

Our pick of highlights from upcoming auctions

The jury applauded the Indian, Portuguese and Canadian galleries for presentations that were "bold" and showed "the spirit of risk"

Fair’s second edition attracts new high profile exhibitors, but some dealers complain that US expansion has prompted a departure from Dutch fair's historical roots

New shows at commercial galleries, from emerging names to rediscovered talent

Art fair hopes to present unified voice from coast to coast

Dealers will be compelled to verify identity of customers buying art for €10,000 or more

Commercial and non-commercial enterprises combine as the most important event in the German art calendar gets underway

David Zwirner's idea that art fairs tax top dealers to support younger galleries signals major concerns over the fragile ecosystem of the art market

Art Chengdu and JingArt aim to join the first rank of the country’s burgeoning events calendars

From a gallery floor-turned-treadmill at Alexander Levy to Aztec inspiration at Barbara Wien

The work is the largest in the artist's most sought-after series of pathbreaking Modern nudes

Our pick of highlights from upcoming auctions

Steven Tananbaum has paid $13m for three sculptures over a five-year period but still has not received any of the works

Our pick of highlights from upcoming auctions

First-time exhibitors give Art Cologne a boost

Annual Hiscox report estimates online market rose 12% to $4.22bn in 2017, but growth is slowing as platforms struggle to build trust and loyalty

Despite soaring rents in the area, Unit London will open in former Citibank building on Hanover Square in June