 The pages attributed to him are universally agreed to be the most innovative; Hulin de Loos described these miniatures as "the most marvelous that had ever decorated a book, and, for their time the most stupefying known to the history of art.For the first time we see realized, in all of its consequences, the modern conception of painting... For the first time since antiquity, painting recovers the mastery of space and light" Hulin de Loos thought these the work of Hubert van Eyck, who, like most art historians of the time, he also believed to be the main artist of the Ghent Altarpiece.He thought the less exciting, but similar, Hand H might be Jan van Eyck.