The objective of this thesis is to analyse how masculinity in close relationships is represented through imagery and writing in Världens viktigaste bok and Pojkkön, which are instructive books about sexuality and relationships written for primary school teachers and students. This thesis is based upon theories regarding masculinity and family, and the theorists used are Connell (1996), Prusank (2007), Greif (2009) and Bergnéhr (2008). The methods used are framing and picture analysis to investigate how masculinity in close relationships is represented implicitly and explicitly. The results of this study show that masculinity in close relationships is represented by a man who provides, has an active lifestyle, is outgoing and displays a limited emotional capacity.