Who wrote more books that became films, Tracy Chevalier or Roland Barthes?
Tracy Chevalier: Tracy Chevalier FRSL (born October 19, 1962) is an American-British historical novelist. Roland Barthes:  Barthes' ideas explored a diverse range of fields and he influenced the development of schools of theory including structuralism, semiotics, social theory, design theory, anthropology and post-structuralism.
i don't know