This article is a bibliographic review of the scientific production published internationally from 2010 until the middle of 2019 on the concept of School Library. The objective was to establish an updated status of the issue on the most relevant research in the school library area. In order to achieve this, a systematic methodology of bibliographic selection was applied in four search engines using descriptors related to the research objective. Therefore, a document bank consisting of 70 titles was obtained. This bank served as the basis of the scientific evidence of the review. The results obtained indicated that the main tasks of the school library are to promote the reading habit, to offer various reading media and to facilitate metacognitive learning in any area of the school curriculum. To achieve this, teachers and librarians must unify efforts in order to turn the school library into a pillar of the school's educational project. Likewise, it is necessary to look for alliances in the social environment and to develop activities that boost the school library and in which families are also involved.