It is one of the most tantalising – and entertaining – puzzles in art, stretching from the Louvre to the Loire via, well, Norfolk. And our critic thinks he has just worked it out ...

The Italian Renaissance painter’s 16th-century work inside the cathedral in Parma is a dizzying illusionistic achievement, ...

Editorial: It can make us healthier, happier and live longer. Engaging in culture should be encouraged like good diet and exercise ...