Valentín Rincón is a musician, composer, and writer of songs for children. He is the founder member of the musical group Los Hermanos Rincón. In addition to writing his own short stories and radio broadcasts, he has also undertaken compilations of traditional rounds, poems, and riddles. Alejandro Magallanes is an award-winning illustrator and graphic designer with a degree from the School of Art and Design of the UNAM. His illustrations have been recognized both in his native Mexico as well as internationally.