Matías Néspolo is a journalist and writer. He has published poetry, novels, and kids books. He has been translated into English, French, Italian, and Dutch. In 2010, Granta magazine included him among their best children's writers in Spanish. He has been the cultural correspondent for El Mundo, El Periódico de Cataluña and currently writes for La Nación (Argentina). 
Raquel Gu is a linguist and translator, but she has liked to draw since she could hold a pencil and this is what she loves to do most. She has worked as an editor for the publisher Salvat since 2008 and since then she has become well-known as an illustrator and cartoonist, and she has also collaborated with various press and TV outlets. She is also the author of several graphic novels for adults and children's books, and she has worked on all the books in the series Chic@Genial.