David Fernández Sifres was born in León in 1976. He has a degree in law and works as a civil servant at the Escala Superior de Técnicos de Tráfico alongside his writing. He started out writing short stories, for which he has won various prizes, before moving into children's and YA literature, winning the Ala Delta, Alandar and Barco de Vapor prizes. He loves attending literary events for children and young readers.