The aim of this thesis is to obtain a better understanding and a better knowledge of how librarians in a University College of Applied Sciences cooperate regarding information sharing. Seven librarians were studied by using semi-structured interviews. The analysis has a sociocultural perspective, which means that the informants have been studied as they are part of a social practice; a work practice, in an academic context. The results show that Kemmis’ theory of practice, with three dimensions of the practice, identified as a) cultural-discursive, b) social and c) material-economic, has been a useful tool for presenting a diverse picture of a social practice in this academic context. The interview guide had questions which were formulated in terms of information sharing and cooperation, with these divisions: Formalia, Work, Forms of cooperation, Use of information and Cooperation regarding information sharing in work practice.