Journal Citation Reports (JCR) is a resource that provides information about academic journals, including their impact factors and citation data. It helps researchers evaluate the influence and quality of journals in various fields by analyzing how often articles in those journals are cited by other researchers. JCR is published annually by Clarivate Analytics and includes metrics that reflect the journal's performance, such as the Impact Factor, which measures the average number of citations to recent articles. This tool is widely used by academics, librarians, and institutions to make informed decisions about where to publish or which journals to follow.