The US is withdrawing from UNESCO (again) at the end of 2018. Has this international body outlived its usefulness?
Ralph Rugoff, the director of the Hayward Gallery, explains what the revamped brutalist building has to offer artists and audiences
Thomas Marks talks to the head of post-war and contemporary art at Bonhams about how the market is shaping up for 2018
Your chance to win 'Leonard Rosoman' by Tanya Harrod (Royal Academy of Arts)
Thomas Marks talks to Jonathan Yeo about the artist’s first sculpture – created using Virtual Reality
This month's acquisitions include a hoard of Soviet nonconformist art, a significant example of brutalist architecture, and a Danish masterpiece
Your chance to win ‘Käthe Kollwitz in Dresden’ (Paul Holberton; £30)
Mark Handforth discusses his commission for the ICA Miami's new home – and the city's thriving art scene
Following a flurry of closures, is the future bleak for small galleries – or might new initiatives serve to rejuvenate them
Your chance to win ‘On Weaving’ by Anni Albers (Princeton University Press)