Even Picasso was a fan. What makes the paintings of Congo the chimpanzee so beguiling, asks Waldemar Januszczak

Tate Britain’s New Displays rewrites the story of British art — trouble is, the result is a nonsense, says Waldemar Januszczak

The British Museum has rightly tried to shed light on ancient Persia, but Waldemar Januszczak isn’t sufficiently dazzled