Like a far-off celebrity glimpsed at a party, the star of Tate Britain’s new exhibition, John Singer Sargent’s Madame X (1883-84), appears at a distance, perfectly framed by a doorway ...

“Isaac Julien: What Freedom Is To Me,” now showing at Tate Britain in London, speaks of art as culturally and politically potent today as forty years ago when the British artist began showing ...