There is startling work in Tate Modern’s Street & Studio show, but our critic doesn’t buy its urban myths

Grayson Perry’s curatorial austerity trip is heavy going

A naked 89-year-old Austrian has you in her sights at the Serpentine. And her brutality is brilliant

It sometimes wanders off track, but this artist’s-eye view of the railway era provides plenty of nostalgic pleasures

So now it’s James Bond and cold-war lite. When did intellect head for the exit?

In a world where image is everything, it becomes easy – even essential – for artists to manipulate the truth

but The American Scene is a more brutal prospect…

Our correspondent pens a letter of thanks to Sir David Attenborough, George III and some miraculous illustrators of natural history

The chances of any good coming of the Barbican’s Martian-themed show are a million to one

A highly original talent, Lucas Cranach has been rediscovered