In the contemporary world, it is important that the school and public library cooperate. Since their missions are complementary, there is a need for their cooperation. Their users, ie. students, are the centre of the education process, and one of the missions of the public library is to provide support to formal education, as well as to informal learaning forms, and this is where its important role in the education system stems from. Both the school and public libraries must readily respond to the changes they are facing, and they stand better chances if they do it together. The main aim of this thesis is to present an overview of the collaboration between the school and public libraries on the example of good practice. In the chronological order, an overview is given of a five-year collaboration between two elementary school libraries with a public library. The most frequent forms of collaboration are: exhibitions, literary events and book launches, lectures, and workshops. The overview of that collaboration testifies to a systemic and continuous collaboration, which can serve as a guidance to other libraries.