 In addition to essays, Liszt wrote a biography of his fellow composer Frédéric Chopin, "Life of Chopin", as well as a book about the Romanis (Gypsies) and their music in Hungary.While all of those literary works were published under Liszt's name, it is not quite clear which parts of them he had written himself.It is known from his letters that during the time of his youth there had been collaboration with Marie d'Agoult.