Susanna Isern (La Seu d'Urgell, Spain, 1978) is an award-winning children's books author. She is also a professor of Psychology of learning at the European University of the Atlantic and directs the Cabinet of Psychology at Aula Dédalo in Santander. Since she published her first picture book in 2011, more than 30 children's books have seen the light of day. Most of her works are sold internationally and can be found in more than a dozen languages, and also written in Braille. Among her most popular albums we find What Are You Scared of, Little Mouse? awarded Silver Medal in the USA Moonbeam Children's Books Award 2015 and The Magic Ball of Wool, awarded Silver Medal at the USA Moonbeam Children's Book Awards 2013.

The award-winning illustrator Silvia Álvarez was born in the tropical coastal city of La Ceiba, Honduras, by a Honduran father and a Spanish mother. At the age of seven she moved to Spain now living in Seville where she graduated in Fine Arts. She was awarded Gold Medal at the International Latino Book Awards for his artwork in Daisy (Cuento de luz, 2017).