Authorities have reportedly arrested a man after the paintings were found in a gorge

A three-year research project looked at the materials in four works from the same period to explain their differing conditions

The 1932 work was last sold in 2013 at Sotheby's when it seemingly sold to the guarantor for a low estimate £28.6m

The De Young’s current exhibition, comparing the work of the two Modern artists, is not a perfect coupling

The third-generation Ateliers Hugo has been casting artists’ creations using ancient techniques from the same workshop in the south of France for nearly 70 years

The work was loaned by the Rockefeller family, who have now requested it back

Family of artist Carl Nesjar—who collaborated on the works with Picasso—say they have a copyright claim and should help decide where the pieces are relocated

The identity of those posing with the master remains a mystery a century after the picture was taken

Influential works by Duchamp, Picasso and Mondrian also celebrate centenary this year

From Leonardo to Bacon, take your pick from a selection of essential texts on leading artists

Aix-en-Provence city council says that sale fell through after negotiations with artist’s stepdaughter broke down

Delayed by coronavirus, the new Kulturstiftung Basel H. Geiger has opened with the promise of free entry and catalogues for visitors

Repairing the piece—on long-term loan from a private collection—will take more than a year and cost up to £350,000

Daughter of the works' co-creator Carl Nesjar says safeguarding the sandblasted works is imperative

The London institution has reopened after four months of coronavirus lockdown but under very different circumstances

Carl Nesjar’s daughter talks about the Norwegian sculptor’s long collaboration with the Modern master and shares exclusive images of the pair

A handyman allegedly stole works on paper from the artist’s stepdaughter over three years, before they were discovered in the possession of the owner of Belle et Belle gallery

As the coronavirus crisis stretches on, we look at how artists have captured confinement in recent history and what is being done now

“Workers at the Y-Block site have started drilling, but it’s worrying as once they start moving the mural, it will crack,” says co-creator’s daughter

Launch of Beijing venue combining works by both artists is postponed—and some loans in doubt

Exhibition at Hauser & Wirth in Gstaad, Switzerland, shows images captured by the war photographer David Douglas Duncan

An exhibition in Athens about the life of Christian Zervos, whose 33-volume catalogue of the artist is indispensable to the Picasso market

From Ruth Asawa's delicate structures to a revelatory show of Picasso's paper works

Our pick of highlights from this week's auctions

Jaime Botin, of the Santander dynasty, did not have a permit to export the painting

Most of the works, created with felt tip pen on newsprint, have been lost, but two have been specially restored for London show

Conservation team assesses the defaced work; man is charged with criminal damage