Tinguely and Warhol worked as window-dressers; Dalí and Duchamp had dalliances with shop displays. Art and commerce go under the spotlight in Basel

Turkey’s first female opera singer was also a painter who had close ties with Germany, and is now the subject of a survey in Berlin

The king of cuddly toys gets the red-carpet treatment at the Musée des Arts Décoratifs in Paris – but life hasn’t always been a picnic for our faux-furry friends

After a ten-year conservation project, Parmigianino’s youthful masterpiece is ready to take part in the National Gallery’s bicentenary celebrations