Since long ago, libraries have been more than just a place to perform its fundamental role of gathering information and transmitting them further. With the changes and development of society, the role of libraries has also been changing. The public libraries of Krapina-Zagorje County are information and educational points of their local communities, and a key cultural center in the wider local community. Tourism is an important economical part globally and in Croatia, therefore also in Krapina-Zagorje County. During the "Days of Croatian tourism" event, Krapina-Zagorje County was declared the most successful tourist destination of continental Croatia, and every year there is an increase of arrival and overnight stay of guests. Today we have „new tourists“ in the scene, who seek diversity, they want an individual offer, feelings, and unique experience. The main objective of the research is to examine the comprehensive relations between tourism and public libraries of Krapina-Zagorje County. Research and experiences of other researchers has been used, as well as questionnaires of public libraries' librarians and author's insight into the theory and practice of public libraries' work and tourism. Public libraries of Krapina-Zagorje County meet the informational, educational, and cultural role in tourism, they are a tourist attraction itself, but their role is not recognized or adequately valorized. Due to all of the above, the model of involvement of public libraries in tourism has been given, as well as numerous examples of good practice.