Non-partisan platform For Freedoms has signed up over 200 institutions for the initiative, which aims to make art part of the public discourse

Expert says new evidence could reveal the location of Mexican artist’s biggest work, which “disappeared into thin air”

US artist says he has “nothing to do with the show”, the first to focus on this body of work in the UK

Talk at London's Galerie Thaddaeus Ropac coincides with exhibition of the German artist's early work

The work will be located elsewhere in Paris, French culture minister says

They are increasingly sounding the alarm on global warming, through new works and collaborations with scientists

The commission will fund the construction of a secondary school in the artist’s native Burkina Faso

She was sentenced to jail for "spreading terrorist propaganda" after posting a painting depicting a Kurdish town draped in Turkish flags

Sale aims to raise €1m to help buy 100 dwellings

The artist’s death came the day after a lawsuit was filed over his legacy

New space for the Paris dealer consolidates gallery’s position as primary market power in France

The Magnum photographer and subject of a travelling retrospective talks about her work, from documenting conflict zones to portraits of Carnival strippers

The legal tussle escalated recently with a controversial Barbie doll modelled on the Mexican artist and feminist icon’s image

The painter was well known for his opaque, semi-abstract canvases inspired by natural history

"In order to bring diversity to our all-white male artist stable, we decided to bring in a few other, slightly more affordable, white male artists."

Five works by unsung 20th-century artists

Activist work reflects what artists are making, says curator of new initiative

The Brooklyn-based artist has an upcoming show at the Wexner Center for the Arts

The German-born artist was a key member of the St Ives artistic community—but why does his work matter?

"It's a participatory conceptual piece consisting in you giving us lots of money for a commissioned art work and agree not to sue me or the artist should we decide not to deliver it."

Episodes of the TV programme will centre on three artistic hubs: Berlin, San Francisco and Johannesburg

Scotland's Kevin Harman is showing his latest sculpture at Frieze New York

US artist tries new techniques and tackles immigration in Naples exhibition

Imposing open-air work made of African farming fabric opens at New York fair this week

Our pick of highlights from upcoming auctions

Heni Talks features videos from artists including Damien Hirst and Jeremy Deller