Marck Castelló was born in Barcelona in 1974. He has a law degree and is a specialist in criminal law. For a long time he combined the practice of law with writing and painting.
As an illustrator, he has collaborated on several issues of Catarsi (a science fiction magazine in Catalan), as well as on the short story collection Montseny amb un somriure (2020).
El Mecanisme (2021) is his first novel.
His way of writing is direct, without superfluous ornamentation, with a simple fut intentionally chosen vocabulary. The style is eclectic, integrating in his work genres as diverse as crime novels, thrillers and fantasy, peppered with a strong dose of humor.