Curator and art historian Henri Loyrette is a specialist in nineteenth-century art.
Bruno Ehrs is a lifestyle and architectural photographer. His photographs appear in One Savile Row (Flammarion, 2014) and A Day at Château de Vaux-de-Vicomte (Flammarion, 2015).
Nils Herrmann is a German photographer specializing in luxury goods, fine jewelry, watches, and furniture design.