The group exhibition includes works by Martin Parr and Vivianne Sassen

Our London and New York teams ponder 2018's biggest art stories. Produced in association with Bonhams, auctioneers since 1793.

Marian Goodman Gallery says Self-Portrait on the train, Germany, had condition problems but seller's representative says low estimate was the issue

The photographer and anti-opioid activist will show works at Frieze and Fiac

In their first direct action, the artist and her activist group PAIN tossed prescription pill bottles labelled OxyContin into the moat surrounding the Temple of Dendur and staged a die-in