Fran Nuño was born in Bilbao in 1973 but lives in Seville, Spain. He is a writer, cultural promoter and bookseller-editor. Author of some forty published books, almost all of them children's literature, among which there are novels, stories, poetry, theater pieces, manuals and picture books. He has received several awards and mentions, both for his literary work and for his work in favor of reading. With Fairground Lights (Cuento de Luz) he won the Gold Medal for Best Illustrated Album in Spanish at the Moonbeam Children's Book Awards 2013 and with The Map of Good Memories (Cuento de Luz) he was awarded Best illustrated album for all ages at the New York City Big Book Award 2017. His work has been translated into Galician, Valencian, Catalan, English, German, Portuguese, Arabic, Mandarin and Korean.

Of Polish origin, award-winning illustrator Zuzanna Celej has a BA Honours in Fine Arts from the University of Barcelona and majored in Illustration at the Llotja Art School in Barcelona. He has specialized in illustration, fine art photography and printmaking. She is currently mainly dedicated to the publishing world with more than 50 titles inside and outside the country. Her work has been exhibited in Spain, France, England, Italy, Poland and the United States. She has been recognized with national and international awards, including the New York City Big Book Award for Best Illustrated Album, The Map of Good Memories (Cuento de luz, 2016). She combines illustration projects with teaching Plastic Arts in several cultural venues and in his own studio, as well as running workshops in Art Schools Masters.