This thesis aims to explore how academic librarians and faculty describe their collaboration regarding development of students’ information literacy, especially focusing on what they consider necessary for a successful collaboration. Taking collaboration theory as a point of departure, and by conducting two focus groups with 6 and 4 academic librarians respectively, as well as individual interviews with 8 teachers, the results of the analysis reveal that successful collaborations are characterised by joint planning and joint evaluation of integrated teaching that reflects both teachers and librarians’ expertise. Such endeavours, however, require both time and mutual commitment on behalf of the two professions. The authors argue that university management need to facilitate networking opportunities, as well as work actively to enable integration and encourage collaboration. Furthermore, the thesis contributes to the theoretical understanding of librarian and faculty collaboration by proposing changes to existing collaboration theory.