Artists and collectors once dismissed as tacky have been gaining power. They may hold the key's to the art industry's future.

After his youthful Dutch landscapes, after some Cubist efforts in Paris, Mondrian purged his art of depth and detail during World War I. Clean planes of red, yellow and blue lie amid glossy ...

On a plate, add the base colour red and, finally ... We'll mix colours to perfect the art of making blue paint. Try not to add too much of each base colour. Create a balance between the two.