Alberto Calvo is the creator of such characters as 'Pepe Persona' and, most notably, 'Supermaño'. Supermaño is a grotesque sight of a typical inhabitant of Aragon's rural areas. Supermaño's early stories can be tracked down in such fanzines as Kaspa de rata since the mid-1980s. In 1988, the character got broader circullation in magazine El Víbora and then in Makoki (second run). Calvo has also contributed his comics to weekly El Jueves and daily Heraldo de Aragón. Supermaño's scattered funny stories were sometimes collected in book format.