This paper deals with adults as group of library users and its information needs and behaviors. It is interesting to investigate these behaviors and needs of a small island community that does not have a long tradition of librarianship. Namely, the Tisno Public Library will soon celebrate its ninth year of existence in its current form. The goal of this research is to study the information needs and behaviors of a specific community (adult users Tisno Public Library) in order to use the results to improve the library's operations and to find out the real needs of adult users. The Focus group method was used to investigate the attitudes, opinions and experiences of adult users about their needs and behaviors when using the public library. This research aims to learn the reasons, opinions, and attitudes of adult users about the services and programs that the library should have and offer. The research is based on information collected through the Focus group method on the cause of two focus groups. Each group has 3 to 4 subjects. Adult users of the Tisno Public Library were included in the research. The research showed that the users are satisfied with the work of the library and librarians. They see the problem in the arrangement of library materials on the shelves, the size and better visibility of the public library