The purpose of this study was to examine school librarians’ external monitoring and cooperation and collaboration with teachers, in order to describe it and examine its significance for the relevance to the profession of librarians. The purpose was also to interpret the meaning of the external monitoring, cooperation and collaboration from a professional perspective. For this we used semi structured interviews and qualitative content analysis. The analysis was based on theory on professions (Nolin, 2008) about lifelong vocational training, cooperation and collaboration. The profession perspective explains problems, difficulties and opportunities that can be seen in school librarians external monitoring and when professions cooperate and collaborate. Our conclusion is that external monitoring is part of the lifelong vocational training and can be seen as a strategy together with cooperation and collaboration with teachers to strengthen, develop and change school librarians knowledge and jurisdiction. The study shows that external monitoring is dependent on cooperation and collaboration with teachers and the other way around. Depending on how developed these strategies are, this will affect both their influence on school library practice and the profession.