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.

Daniel Montero Galán (Madrid, 1981) was born prematurely, at the early age of zero. His head was always full of birds. As time went by, they reproduced, and along came a lot of different kinds of creatures, making a great noise¿squawks, grunts, and screams¿ so he decided to transfer them into a paper to silence them. He keeps a deal with his drawings: they live thanks to him and he lives from them. Because of this symbiosis, more than thirty illustrated books stand up for him to testify that his thing in life is drawing. Day by day, and every other night, he continues to perfect spiral and rectilinear shapes to keep fit without losing shape. Watercolor fights a great battle with the marker to have a leading role on its cardboard.