Charleston gives the overlooked artist Nina Hamnett the show she deserves

Who’d have thought that the embarrassingly bad art of Jean Dubuffet could be the subject of an exceptional exhibition?

How did a digital image become the third most expensive artwork ever sold by a living artist? Waldermar Januszczak on the inexplicable rise of ‘non-fungible tokens’

Jan Matejko’s Copernicus was a picture intended to galvanise a nation

The artist’s iPad landscapes seem designed to cheer up the nation

This action-packed exhibition reveals another side to the British artist

Rodin’s casts buzz like bees, with a restless and temporary spirit — the best settle into the monumental and still

Finally we will be able to see how jaw-droppingly beautiful they are

Here we go again. Another year, another ludicrous, unfair and undemocratic Turner prize shortlist.

Rondinone’s blue horses show a yearning for a lost past