"The X-Files" was converted into a comic book series published by Topps Comics during the show's third and fourth seasons. The initial comic books were written solely by Stefan Petrucha. According to Petrucha, there were three types of stories: "those that dealt with the characters, those that dealt with the conspiracy, and the monster-of-the-week sort of stuff". Petrucha cited the latter as the easiest to write. Petrucha saw Scully as a "scientist [...] with real world faith", and that the difference between and Scully is not that Mulder believes and Scully doesn't; it's more a difference in procedure." In this manner, Mulder's viewpoint was often written to be just as valid as Scully's, and Scully's science was often portrayed to be just as convincing as Mulder's more outlandish ideas. Petrucha was eventually fired and various other authors took up the job. Topps published 41 regular issues of "The X-Files" from 199598.