Mar Pavón (Manresa, Spain, 1968) is a writer mainly dedicated to children's literature. Some of her extensive work is translated into English, French, Portuguese, Italian, German, Dutch, Chinese and Korean, among other languages.

She has been honored with prestigious awards in the US, some of which were presented by the International Latino Book Awards. Her most significant work is Yeray Poeta, published following the birth of her son in 1996. Her most popular character is “Clucky the Hen”, created in collaboration with the illustrator Mónica Carretero, winner of several awards and recognitions.

Sonja Wimmer loves painting pictures and telling stories. After studying and working for some years as a graphic designer in her hometown of Munich and Brussels, she decided to pack her suitcase and move to Barcelona to study Illustration at the Llotja Arts and Crafts School. Since then, she lives between brushes and stories, working as an illustrator and freelance for publishers and other customers worldwide. She has received many awards for her work in the United states, most notably Gold Medal for Best Illustrator for The Word Collector.