This Masters thesis concerns collaboration between teachers and librarians. Three theoretical perspectives, profession, power and legitimacy, are used to analyse the results of written interviews with eight teachers and one librarian at a comprehensive school. We did not find evidence of any deeper collaboration between teachers and the librarian. The effects of profession had little impact on the relation although the involved parties seemed to appreciate differences in education and points of view. The teacher retains power over education and grades while the librarian holds sway over the physical library and the purchase of books and other media. Formal legitimacy was manifested in the fact that the headmaster had established a library at the school. The librarian has to struggle for real legitimacy by being proactive and by marketing the library to the headmaster and staff. Other factors that influence collaboration include teaching philosophy and methods, i.e. the context of teaching and learning, for example, in problem-based learning is a significant influence on collaboration.