The purpose of this study was to examine through interviews, how preschool teachers describe educational documentation and how they use this educational tool in their everyday activity. To get an overview of what educational documentation can be, the study takes its startingpoint in the educational movement in Reggio Emila in Italy after the second World War, where educational documentation was an important part of the educational philosophy. The background also gives an overwiev of the policy documents for preschools in Sweden. The study shows that educational documentation run the risk of being confused with or reduced to the children’s folders, where the aim is to describe with a few chosen pictures the child’s growth trough the years in preschool. But this is no educational documentation. The study pointed at the educational factor as an important aspect of how teachers describe their work with educational documentation. Further and recurring education is essential in the dynamic profession of preschool education. Leadership seems to be important, especially for the teachers that has not had any further education. The time for work with educational documentation is described as adequate, but when the question of joint refexion came up, the time was said to be too short. The dialogue that is important for the educational documentation does not take place. ICT, Information and Communication Technology, plays an essential part in today´s work with educational documentation. The access to technical equipment and knowledge how to use it is varying and in need of improvement.