¿Sabes que te quiero?, 2010: t.p. (Blue Jeans) back cover flap (pseudonym by which Francisco de Paula Fernández is known; b. in Sevilla, Spain; also wrote Canciones para Paula which was his first novel)
His Tengo un secreto, 2015: title page (Blue Jeans) inside front cover (Pseudonym is Francisco de Paula Fernández; born in Carmona, Sevilla; currently lives in Madrid)