School libraries play a key role in the development of information literacy among students. The goal is to train students to independently research, think critically, and use digital and printed sources responsibly. This thesis presents a systematic review of previous information literacy research in the context of the school library in the Republic of Croatia. At the beginning of the paper, key terms will be defined for understanding the research overview. The research included in the thesis will be searched through online data sources (KOHA - catalog of the Library of the Faculty of Philosophy in Zagreb, catalog of the National and University Library in Zagreb, catalog of the Zagreb City Library, Hrčak - portal of Croatian scientific and professional journals, ODRAZ - open digital repository of academic FFZG community, CroRIS - Science Information System in the Republic of Croatia, ZIR - National Repository of Final and Graduate Theses, National Repository of Dissertations and Scientific Master's Theses, Google Scholar). The focus of this thesis will be on school libraries and their influence on the development of information literacy among students. The influence of school librarians on the development of information literacy and their general, pedagogical, and professional competence will be emphasized. The paper will offer an overview of the state of conducted research related to the spread and development of information literacy in the context of school libraries.