Pizarnik was employed in the department of Philosophy and Letters at the Universidad de Buenos Aires where she published her first book of poetry, La tierra más ajena (1955). Pizarnik followed her debut work with two more volumes of poems, La última inocencia (1956) and Las aventuras perdidas (1958). Later she lived and worked in Paris before ending her life on September 25, 1972 at the age of 36.