In this collective book, the effects of Mass Media on information and the shaping of professional perceptions, attitudes, and choices of young people regarding their integration into the workplace are explored. The issue is approached theoretically, with a review of recent Greek and foreign literature, and empirically (the research was funded by the SEP sector of the Pedagogical Institute), where the results show that Mass Media mainly contribute indirectly to the formation of social representations of professional preferences, thus directing the professional preferences of young people. Additionally, the importance of the family environment in the professional choices of young people is highlighted, as well as the particularly significant role that the School Vocational Guidance lesson is called upon to assume, as revealed by the answers of the adolescents in the research sample.