The authors discuss individual and societal factors which influence the gender biased image of science, engineering and technology (SET) prevalent in young people. From different angles the authors investigate the consequences of this often unattractive but also partly obsolete image for gendered study and occupational choices of girls and boys. Besides peers, school and media as main influencing socialisation instances the contributions focus on young people's selfconcept regarding the development of gendered attitudes towards SET. Further this book includes approaches and concepts of inclusion measures aiming on changing the image of SET and attracting young people, and especially girls, for these study and job fields.