Deck is best remembered for his brilliantly coloured glazes, including the famous ‘Deck blue’, first shown in 1874 at the Exhibition of the Union Centrale. He was inspired by Iznik pottery from Turkey and also by Assyrian, Hispano-Moresque, Chinese and Italian Renaissance ceramics. After the World’s Fair in Paris in 1878, he was awarded the Légion d’honneur.
Until his appointment as Director of the Manufacture de Sèvres in 1887, his production was prolific. In his role at Sèvres, he trained the next generation of ceramicists, including Edmond Lachenal and Émile Decoeur, who helped him overcome prevailing academicism and become one of the leaders of the French ceramics revolution.
Other works by Théodore Deck are held in the collections of the Walters Art Museum, the Musée Unterlinden (Colmar), the Musée Théodore Deck, the Indianapolis Museum of Art, the Musée d’Orsay, the Musée des Arts Décoratifs, the Victoria and Albert Museum, the British Museum and the Metropolitan Museum of Art.