Librarianship as a science in Croatia and Poland was developing in similar conditions. These are both European countries with a short distance. Both countries took as a model knowledge from other countries where librarianship has strengthened, examples of such countries are England, France, Germany. The education of librarians at the very beginning was very practical, there were no formal education systems. However, over time, the first schools emerged. Nowadays, librarianship is a recognized science in the world, and education for librarians has reached an academic level. Due to the constant changes in the profession, and especially those related to technological advances, it is important to renew the educational program all the time. Of course, school librarianship is also embedded in the education of librarians. Due to the vastness of the area in which we could study this phenomenon, I decided to compare the education of school librarians in Croatia and Poland on the example of the Faculty of humanities and social sciences, University of Zagreb and the Adam Mickiewicz University. Here we find a key difference when it comes to educational programs in Croatia and Poland. Although the Faculty of humanities and social sciences tried to incorporate school librarianship into the regular study of librarianship, it failed to fully implement it. On the other hand, the Adam Mickiewicz University has introduced a special module for school librarianship, so that a student can work in all types of libraries after graduation. In addition to reviewing the literature, this paper also presented the opinions of experts (school librarians) and librarians in Poland and Croatia. After the interviews, we can conclude that both educational systems are of high quality and that students after completing these studies can be employed in the profession and do their job well.