David Muñoz was born on October 10, 1968 in Madrid, Spain. He is a writer and director, known for the films: "The Devil's Backbone" (2001), "The Totenwackers" (2007) and "Exorcismus" (2010) as well as the comics: "Whispers in the Walls" and "The Last Ones".

An early art enthusiast an avid comic book fan, Tirso dedicated himself to the craft of drawing and won a comic book talent contest in 1993,at the young age of fourteen. In the early 2000s, he studied and eventually came to work in the fields of advertising and public relations. He became the artistic director of the successful Spanish advertising agency Contrepoint, where he collaborated on projects for Jeep, Mercedes-Benz, and Chrysler, among many others. A few years later, Tirso decided to venture back into the world of graphic novels where he ascended rapidly, working alongside authors such as Wander Antunes, and winning a prestigious best book award at the festival de Moulins along the way.