Soledad Romero Mariñostudied and worked as a creative art director for more than a decade, but not feeling fulfilled, she reinvented herself by following her passion for books and becoming a writer. As the daughter of a comedian and a ballerina, she grew up playing behind the scenes, surrounded by a world of fantasy. Since 2017 she has published more than 20 books. Soledad lives in Barcelona. Mariona Cabassahas been working as an illustrator for over 20 years. She studied illustration at the Massana School of Art, followed by a postgraduate year in Strasbourg, France. A tireless explorer devoted to creative life, she has published almost 100 children's books in the past two decades, in various languages and countries. Mariona has also worked on projects illustrating puzzles, games, vinyls, posters and stationery.

She lives in Barcelona. Lawrence Schimel writes in both Spanish and English and has published over 130 books as author or anthologist in a wide range of genres, including fiction, poetry, graphic novels and children's literature. His children's books include Early One Morning, Bedtime, Not Playtime!and Lucky Me, which was chosen for IBBY'S Outstanding Books for Young People with Disabilities and won a Crystal Kite Award from the Society of Children's Book Writers and Illustrators. Lawrence is also a prolific literary translator of over 200 books, including Newborns: How Baby Animals Come into the World, RO-BOand Cristina Plays, which received a starred review from Publishers Weekly. His translations have won a Mildred L. Batchelder Honor and an Américas Award Honor (twice), among other distinctions. He lives in Madrid.