Luis Amavisca holds degrees in Musicology and History of Art and completed a two year training course at the School of the Senses in Milan. A visual artist, he has worked with photography and video and created installations. Amavisca has shown his work in Malaga, Paris, Basel, Madrid and Berlin. His books include 'Los gulinos' ('The Gulinos') 'La princesa Li' ('Princess Li'), 'Pum Pum hice daño a la luna' ('Pum Pum Damages the Moon') and 'El espejo' ('The Mirror'). He has written about the environment, divorce and diversity. Mónica Carretero lives and works in Segovia and is self-taught. She has illustrated dozens of books, games and posters for clients in Spain, England, Macedonia, Korea, the Lebanon, France, Australia, and the United States. Carretero contributes to various Spanish and American magazines and also works in various fields outside publishing: decoration, textile production, games... Her work has been recognised at the London Book Fair, the Latino Book Awards (US) and BookExpo America.