“The 6ft 3in art dealer — or “gallerist”, to use the art-world jargon — is at a crossroads. After all, for the past 15 years, since he set up the gallery White Cube, Jopling, known as “JJ”, has managed his London stage like a ringmaster. Ubiquitous, supremely confident, signature-styled in spectacles and suit, Jopling has become more than a dealer, almost a figurehead. Jopling, whether he liked it or not, became an emblem of London’s artistic renaissance in the 1990s.”