Library and information science, or library or information studies, is the combination of information science and library science. Its function is to design and develop knowledge-organization systems. It uses tools of management and information technology to organize, collect, disseminate and preserve information resources. A primary aspect of this domain is the organization of information to serve the specific needs of readers. It is also concerned with the acquisition, evaluation and application of information by users within and outside libraries. Some of the significant areas of study in this discipline are interactive information retrieval, scholarly communication, bibliometrics, digital literacy, etc.