Marina Picasso: selling my grandfather’s art is a way of helping me heal

Famous artist’s granddaughter will auction ceramics made by the man who never seemed to care for her in a bid to finally leave behind a miserable childhood

V&A conservators race to preserve art and design classics in plastic

Materials that reshaped design in the 20th century are now showing signs of degradation due to the instability of plastics

Tate Modern at 15: still delivering the shock of the new

The Bankside museum has transformed modern art from an elite cult into mass entertainment, but is it time to get down to some proper studying?

Turner prize 2015: an end to the same-old same-old. Bring it on!

The jury of this year’s prize are doing what they should do – giving intriguing new art a platform. They’ve certainly piqued this critic’s curiosity