The aim of my master’s thesis has been to examine the situation of the price lists in the National Library of Sweden, in Uppsala University Library and in the Nordiska Museet Library. The starting point was that the institutes have been operating within different institutional practices. These operational differences between the institutes have affected the collecting, the organizing and the accessibility to the information of the price lists. My master‘s thesis is based on Birger Hjørlands theories of domains and knowledge organization. The main sources of the information in the thesis are interviews conducted with informants within these three institutes. The findings of the study show that the main differences in how the institutes have been organizing the price lists, results from the different assignments the institutes have in collecting the material. Based upon the facts that have emerged in the interviews, some general and some specific problem areas have been highlighted. These problem areas have been discussed in the thesis and possible solutions in how to proceed have been presented.