Mal established his reputation with
picture books, primarily storybooks for young people. These mostly include novels about the problems faced by young people growing up today. Among younger children, his series of crime stories for children about agent Žardna. Some of his books have been translated from Slovene into other languages. For his youngest readers he wrote for various Slovene children's magazines including
Ciciban,
Kurirček,
Pionirski list,
Trobentica, and
Zmajček. The print run of all of Mal's books exceeds 300,000 copies and, as part of the Slovene
Bralna značka ('reading badge') reading program, he has appeared at nearly 500 schools and libraries. Mal is generally considered the first Slovene write of
juvenile literature that wrote, as he put it, "about apparently banal things such as having to pee, throwing up, and masturbation." Slovene juvenile literature experienced a rebirth in the 1980s in part due to Mal's contributions and distanced itself from a moralizing approach to upbringing. Young readers were attracted to his portrayal of young people as they really are, with all of their good and bad qualities. His works for adults—
Ganimed in drugi (Ganymede and Others),
Za metuljem še Rok, and
Nedokončana zgodba (An Unfinished Story)—were intended for a small circle of readers because they explore
homoeroticism. == Film and television ==