Art is put in the witness box for The Art Newspaper’s 25th anniversary celebrations

PLUS: The beat goes on for Anri Sala at Frieze, Grayson Perry goes head-to-head with Mondrian, Michael Landy woos Glenn Brown, and more fair gossip

PLUS: Mark Leckey's work is feline fine, art for the brain, art for the body, silent nude delights and unnerves Frieze visitors, and more fair gossip

PLUS: Get your private parts painted in public at Frieze, dealers have their say on if Renoir is crap, working the aisles with Graham Norton and David Furnish and more fair gossip

The artist worked with her husband for nearly 50 years

Our pick of the city's must-see exhibitions—just the tonic to avoid art-fair fatigue

In a rare interview, the Italian artist spoke frankly about keeping the prices high for his work, saying: “I can always be a doctor instead”

Twenty-five years ago, when The Art Newspaper was founded, the Berlin Wall had just come down and it seemed that a future of peace and progress lay ahead. The reality has been worse than one could possibly have imagined