Joseph Friedman is an art market professional with over 30 years’ experience in the fine and decorative arts. A director of Saatchi Yates Masters , he was previously a senior director of Sotheby’s, Curator of the Duke and Duchess of Windsor’s house in Paris, and an adviser to the National Trust, the Foreign Office, and the J. Rothschild Group of Companies, and has published and lectured widely on the history of art, architecture, and collecting.