Born in October 1970 in Saint-Loup in French-speaking Switzerland, Bertschy became a graphic designer and worked in that capacity for Philip Morris for 8 years. After winning the "new talent" competition of the Sierre comic book festival in 1999, he started out professionally in "TCHÔ !" magazine, illustrating a comic strip called "Jimmy Brocoli." It was then that Editions Glénat offered him a chance to create a series of his own. This resulted in the creation of "Smax," which appeared monthly in "TCHÔ !". Then, in February 2001, Bertschy launched his comic strip "Nelson" in "Le Matin" (no. 1 daily newspaper in French-speaking Switzerland), a phenomenon that has now reached 3,500 strips. In 2018, the first compilations of the series were published in English by Europe Comics.
