Margaret Randall began El Corno Emplumado in 1962 and co-edited the little magazine at various times with Sergio Mondragon and Robert Cohen. The magazine was highly regarded as a progressive literary journal by poets and intellectuals throughout the Americas. Each issue includes original writings in Spanish and in English as well as translations. El Corno Emplumado was deeply committed to a revolutionary literature and developed an independent press that published works such as a mini-anthology of Cuban revolutionary poetry. As the magazine progressed, Margaret Randall became increasingly radical in her politics. Randall's vision of the little magazine as a forum dedicated to revolutionary literature addressing progressive intellectuals and revolutionaries themselves caused a rift between her and her co-editor Sergio Mondragon. As a result, Robert Cohen replaced Mondragon as co-editor for the final two issues in 1969.