Emma de la Barra, known by the pseudonym César Duáyen, (1861-1947) was an Argentine writer, best known for her novels Stella (1905) and Mecha Iturbe (1906) which were praised for their portrayal of modern women.[1] She is closely associated with the Costumbrismo movement. Stella became the first best-seller in the country,[2] and in 1943 it was adapted into a film starring Zully Moreno as the character of Stella.[3] Other notable works include El Manantial (1908), Eleonora (1933) and La dicha de Malena (1943).[4]