This thesis analyses the use of sociolects in Michel Tremblay's Sainte Carmen de la Main , David Fennario's On the Job and Vittorio Rossi's Scarpone. The term sociolect identifies the language variation of a specific social group. The social groups then subdivide into various other categories which use sociolect sub-genres. The authors use the sociolects of the working class and the sociolect sub-genres of members of this social class who share similar occupations to create the hyperlanguage of their characters. In using such language variations, the authors show the aesthetic qualities of the working-class sociolect, and show the cohesive and protestative properties of a language variation that differs from the culturally established norms.