We are living in a world of media in which the media are inevitable part of our lives. They inform us, entertain us, form our scale of values, affect our mood, thoughts and attitude. It is important to learn how to deal with media and how to use them. Users need help to obtain specific knowledge, skills and competences which will enable them to overcome negative media impacts. For that reason media literacy is a necessity. If you take into a consideration the rising number of literature, gatherings and workshops dedicated to this subject, we can say that the Croatia recognized the importance of media literacy, and there is a lot of talk about the need of implementation and introduction of media education into the school system. For now, the media in Croatia are integrated in educational system just through the media culture which is one of integral components of Croatian language. Beside this, teachers lack appropriate knowledge about media and are missing adequate literatures. Lessons about media are mostly found in a books of Croatian language. How much space is dedicated to media contents, which media are represented the most, do analyzed units represented in books encourage pupils critical thinking and creation of media contents, do books talk about media violence and harmful media impacts are just some of the questions on which will give the answers in this research. We found the answers by analyzing class units about media culture in books of Croatian language from first to forth grade in gymnasium.