As the largest auction house in France and the world, Christie's organizes auctions in over 80 specialties. In order to promote its online auctions and reach new audiences, Christie’s regularly engages SISSO to design and produce content showcasing the artworks up for auction. The agency is responsible for producing newsletters for Christie’s Paris, creating its web banners, and producing videos for social media and in-situ displays. Between 2018 and 2020, SISSO also partnered with Christie’s to produce "Enchère!" magazine, dedicated to the French art market.