The purpose of this thesis is to construct a marketing model to be used both theoretically and practically when working with marketing in Swedish public libraries. This objective is achieved by first making a literature review of the written works on the marketing of libraries, and then studying the marketing activities at the public library in Bollebygd, Sweden. The theory is based on the marketing mix model the 7 ps, which serves as a framework for the presentation of the empirical result and the analysis. One of the questions posed in the beginning of the paper is how the library has worked with marketing over the past ten years. Through a combination of methods observation, textual studies and interviews the marketing activities employed at Bollebygds library are noted. By making a comparative analysis between the case study and the theory, the second question on what similarities can be found between the empirical results and the theoretical texts is answered. These two questions function as starting points from which the theoretical model used, the 7 ps of the marketing mix, is evaluated. Out of the conclusions reached a modified model is created that encompasses theory, field study results and own observations.