The aim with this study was to study how preunderstanding of a text or literature makes the reading easier for second language learners. I wanted to find out how we can work with preunderstanding in school and help our students.  The study is based on interviews I did with three teachers. Science shows us that reading consists of two main activities, a visual analysis of the text and an interpretation of what the textual means. These activities run together where the information in the textual and the preunderstanding the reader has cooperates together. The study shows that preunderstanding is very important for second language students. An important reason is to understand a book even if you don`t get every word in it. The study also shows that the teachers use preunderstanding every day in different ways.  They use pictures, discussions and the experiences that the students have. The teachers in the study explained that they let the students choose literature sometimes, but they also decide what the students are going to read. The reason for that is to develop more knowledge among students about new appearances.