This thesis discusses authors Elise Ottesen-Jensen and Elin Cederblom’s texts on sex education in the early 20th century. The purpose of this thesis is to examine how sexuality, women, men and gender are portrayed in the texts and books. The study aims to explore whether the authors texts vary depending on their ideological affiliation which is made visible through intersectional theory. Ottesen-Jensen writes from a working class and socialist perspective whilst Cederblom provides a conservative perspective on the subject. Through a qualitative text analysis, the study examines and compares how sexuality is portrayed and treated in the texts and how the discussion regarding sex education in relation to men, women and gender develops. To give the discussion a greater depth, the method also has a large focus on the authors context and the context of the time where the study takes place which makes connections and patterns more visible. The conclusion of this thesis is that the authors provide different views on sex education.  Ottesen-Jensen is significantly more progressive in her advice and opinions than Cederblom who has a conservative approach. Both authors have a clear view of what tasks a woman should be engaged in and what a man should do. While the man is seen as a figure of the public and working life, the woman has great responsibility at home in the reproduction, upbringing of children and everything else related to it. The source material matches the context of the time and its accepted views. Regardless of the authors' ideological affiliation both Cederblom and Ottesen-Jensen’s material discusses sex education in relation to thoughts and opinions about eugenics and population planning. What is most characteristic of the study's conclusion is the material's mixture of conservative and progressive opinions. Progressive opinions that are still relevant today such as views on abortion and prostitution.