NewsArt fairs
'It was painful, it was hardship': Marina Abramovic on her ill-fated, epic walk towards Ulay across the Great Wall of China
Three decades after the artists made the journey, in the dying throes of their relationship, PhotoFairs Shanghai is showing the work for the first time in the country
PreviewArt market
Object Lessons: from a polaroid of Basquiat to a Ming dynasty bodhisattvas
Our pick from this week's fairs and auctions