Daniel Nassar taught Architectural Design and construction at the University of Chile and now runs his own architecture company in Barcelona. He has a PhD in Architectural Design and has always thought animal constructions to be a source of inspiration for human architecture. Julio Antonio Blasco is an illustrator, painter and designer who has previously published three other books for children. His book Sofia o el Pendolaje won four awards. His latest book, La Ladrona de Sellos, is to be published shortly by Edelvives.