Flores, Manuel M Cartas a Rosario de la Peña / Flores, Manuel M. CARTAS A ROSARIO DE LA PEÑA / Manuel M Flores; (Preface) Marco Antonio Campos. Puebla, México: Factoría Ediciones, 2002. 172 pages: 21 cm. (La Serpiente Emplumada, 29). ISBN: 968687173X Compilation of letters written by erotic poet Manuel M. Flores to Rosario de la Peña, muse of 19th century pos-romantic movement in Mexico. Texts offer in-depth view of their relationship and private lives.