BUM was created just before Boty died of cancer aged 28 in 1966

Local rivalry between Düsseldorf and Cologne was put to bed as the inaugural fair opened

The pair were blindfolded then interrogated for up to 10 hours by authorities over their coverage of migrant workers

The octogenarian artist is in ascendance, with a solo show opening at the Serpentine later this month

Yusaku Maezawa broke the news on Instagram, saying he hopes the work will be “loved by people all over the world”

Ownership of vast library of Hebrew manuscripts and books has long been contested

London art dealer parted ways with Anthony Wilkinson after 20 years this summer

Former Serpentine director has co-organised an exhibition on Italian artist Medardo Rosso

Exhibition of US TV agent Norman Kurland's collection of ancient Chinese art is a highlight of 20th anniversary event

Xu is closing his project space and will work alongside former Christie’s head Jennifer Yum

Her essay, Why Have There Been No Great Women Artists?, changed the course of art history

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