He is better known for the novels based on his travels in the Himalayas but also writes short stories and, in recent years, has begun a series of novels set in the Pyrenees.
Josep-Francesc Valls is professor of Marketing, Strategy and Tourism Management at ESADE Business School (Barcelona).
Juan Berrio has worked as an illustrator, comic writer and graphic design for over 20 years, and his images - whether cartoons, drawings or photographs - have appeared in many different media. He has written and illustrated the comic strips Mañana es martes, A saltos (both in Under Cómic), Siempre la misma Historia (Astiberri), Calles contadas (autoedición) and Dentro de nada (Astiberri).