Guillermo Cifré was among the new generation of Spanish comics artists that emerged in the 1940s. These artist deviated from the juvenile aspect of comics and focused on social satire. The pioneering magazine in this genre was Pulgarcito, in which Cifré published his comics, commenting on burocracy, the treatment of the middle class, queues in front of shops, low salaries etc.
Cifré was remarkable for his verbal outbursts and typical expressions, that were adapted many of the Spanish people. His most famous characters were 'Don Furcio', 'Cucufato Pi' and mainly 'Reporter Tribulete'. In the 1950s he was present in Dot magazine, were he produced the Superman-parody 'Aventuras Morroco Tudas del Super-Birria'.