More than 200 artists, writers, curators and others have spoken out over abuses of power in the industry

French shipping firm André Chenue beat US competitors to buy the 150-year-old business, as Bouvier continues to fight legal case against Dimitry Rybolovlev

Italian artist known for submerging a giant pair of hands in Venice’s Grand Canal plans to install the steel sculpture next year

Chairman of the Anadolu Kültür centre, who is outspoken critic of Turkish president, was detained at Istanbul airport

Show of more than 40 artists includes Jenny Holzer, Grayson Perry and Gerhard Richter

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

Chinese artist was en route to premiere of his documentary Human Flow when staff wrongly claimed his visa was invalid

The protest work He Will Not Divide US has been moved four times after attacks by far-right extremists and vandals in the US and UK

The artist is setting up a sculpture studio, while the London dealers are opening second galleries in the same former printing warehouse

Artist unveils his “black site” installation in Yorkshire as Guardian article reveals the suffering of prisoners shackled in dungeons in Afghanistan and Thailand

Contemporary auction followed a lacklustre Italian sale, prompting calls for the latter to be shelved

The German painter celebrates the work of other female artists in her first London institutional show

Seventh edition had been scheduled for February 2018

Colonial monuments and the US flag are subverted at Frieze London

The British artist duo show us around their London stomping ground

Former East End brewery will display duo’s “difficult” works

Contemporary African art fair welcomes unprecedented numbers of galleries from the region ahead of Marrakech launch

Museum of Contemporary Art Chicago and Nasher Museum share the first $250,000 award for shows on Middle Eastern and South Asian art, and Latin American Pop

Shows in New York, Paris and London mark the artists’ 50th anniversary

Italian collector will show works from her vast contemporary art collection at the Matadero cultural complex

Swiss dealers will occupy a space in the new H Queens development, as well as establishing offices in Shanghai and Beijing 

The 101 trees in “garden of good and evil” will continue to grow at Yorkshire Sculpture Park long after artist’s solo show

London’s National Portrait Gallery is to host exhibition featuring more than 40 leading artists including Andy Warhol, Isaac Julien and Faith Ringgold

British street artist’s latest works poke fun at the zero-tolerance approach to graffiti around the London gallery

New director, new date and new layout help art fair get off to a positive start

Modern Art and Herald Street are opening second spaces; König Galerie is coming to town

Chinese artist’s biggest exhibition to date uses porcelain as a way of bridging Turkey’s historic connections with the East

Contemporary Istanbul is upping its game for its 12th edition.

Gallery appoints Danqing Li, former Christie’s specialist, as senior director in Asia