First published in Spain in the summer of 1929, Concerning the Angels (Sobre los angeles) is the great Spanish poet Rafael Alberti's masterpiece, on a par with T.S. Eliot's The Waste Land, Pablo Neruda's Residencia en la tierra, and Federico Garcia Lorca's Poeta en Nueva York. It marks a major departure from the light-hearted tone of the poet's earlier verse, which was notably influence by Andalusian folksong. It is at once intensely imaginative and intimately realistic, a lyrical illumination of the poet's "dark night of the soul."

Rafael Alberti, born in 1902, is the last surviving member of the so-called Generation of 1927 that included such notable Spanish poets Federico Garca Lorca, Vincente Alexandre, Pedro Salinas, Jorge Guillen, and Luis Cernuda.

Christopher Sawyer-Laucanno lives in Massachusetts and teaches in the program in Writing and Humanistic Studies at MIT.