Otto Gabos (Mario Rivelli) was born in Cagliari in 1962. In 1985, he made his debut in “Tempi Supplementari” and went on to publish the most important magazines in the field. In 1992, he published for Granata Press the graphic novel Tobacco, which was created together with writer Pino Cacucci and re-released by BD Alta Fedeltà in 2005. He collaborated with Emidio Clementi on Finale di sangue, a story inspired by the famous character Fantomas. He wrote several series for “Cyborg,” both in versions for Star Comics and for Telemaco. For Phoenix he wrote Apartments, the graphic novel Coldgraze, and the miniseries San Pietro. He illustrated covers and volumes for Einaudi, Zanichelli, Paravia, Bruno Mondadori, and Giunti. For Lang publications, he created a comic version of the novel Un sacchetto di biglie by Joseph Joffo. In 2010, he published Sarti Antonio. Come cavare un ragno dal buco for Leonardo Publishing and La giustizia siamo noi, edited by Rizzoli. Besides drawing comics, he writes, illustrates, and teaches comic art at the Accademia di Belle Arti in Bologna.