Joseph Mallord William Turner was an English Romantic landscape painter, watercolorist and printmaker known as "the painter of light". Some key facts about his life and work include: - He was born in London in 1775 and exhibited his first oil painting in 1796 titled "Fishermen at Sea". - Turner's style was Impressionism and he is known for his use of light, color and atmospheric effects in his landscape paintings. - Some of his most famous works include "The Battle of Trafalgar" from 1806, "The Burning of the Houses of Lords and Commons" from 1835, and "Modern Rome" from 1839.