The aim of this thesis is to understand and describe the ways in which information literacy is expressed in the work of schoollibrarians. Information literacy is seen as an understanding of how information is sought and used within a social setting. Research questions guiding this endeavour are: 1. In what ways do school librarians seek and use information? 2. How can the information literacy of school librarians be described based on their information practices? In order to shed light on the social setting that constitutes the work of school librarians, practice theory and a sociocultural perspective on information literacy is used as a theoretical framework. Empirical data were produced by way of five semistructured interviews with active school librarians. These interviews were analysed thematically. The findings point toward information seeking and use in school library work being integrated information activities taking place in relation to the performance of work tasks, as well as being a highly social activity. Information literacy is described as enacted in the performance of these information activities. It is also understood as expressed on multiple levels, from being informed about current events in the world and within the school, to understanding how this may effect the day to day performance of work tasks.