He is known especially for paintings of shelves filled with books, a subject he painted more than a hundred times. In 1985, John Ashbery wrote that Marsans' works "suggest nineteenth-century American trompe-l'œil painting.
He is renowned particularly for paintings of shelves laden with books, a subject he painted over a hundred times. In 1985, John Ashbery remarked that Marsans' works "suggest nineteenth-century American trompe-l'œil painting."