This Master’s thesis concerns the public librarian’s professional identity. The complexity of the mandates of the public librarian, and the public library, raises questions on how librarians understand their professional identities. The empirical material consists of qualitative in-depth interviews with librarians. Two theoretical approaches are used in the analysis of the material with a focus on the public librarians’ knowledge and professional role. The informants’ statements are categorised according to different models. The results reveal that the librarians express various attitudes, some of them contradictory, for instance, towards the users of the library. Some tensions characterise the professional identity of the public librarian, for example, between practical and theoretical orientations. / Uppsatsnivå: D