According to the Swedish School Inspectorate school libraries in Sweden are not utilized to their full potential. They conclude that this has a lot to do with a lack of communication and collaboration. We have, with this as a working premise, analyzed the collaboration between school librarians and teachers with a basis in the Teacher Librarian Collaboration-models. The TLC-models illustrates the collaboration between school librarians and teachers by using four categories for collaboration. The results are based on four interviews with school librarians on the topic of collaboration with teachers from the librarians’ point of view. Three things to note according to the informants are their dependence on a library plan, the need for a more involved management that has a deeper understanding for what they want from the school library, and that overall, they express a satisfaction with the collaborations they do have with teachers although two of the respondents wish these were conducted with all of the teachers in their workplace and not just a select few. The models have been applied to the result to elucidate the level of cooperation and we can conclude that although the collaboration patterns are far from terrible there is room for improvement. For further research we suggest deeper investigations on the role of the library plan and its impact on the collaboration. We also suggest further research on the role of the teachers and principals should be done in disciplines outside Library and Information science. At last we see an advantage in this kind of study, but in a grand scale to gather a broad array of ideas and perspectives.