This document provides instructions for accessing and using the Journal Citation Reports (JCR) database through the university library homepage. It explains how to log in to the database, select between the science and social sciences editions and specific years, group journals by subject/publisher/location, search for a specific journal, or view all journals for an edition and year. It then provides an example of generating a report for infectious disease journals in 2010, ranked by total citations. The document notes that journals can be re-sorted and specific titles added to a marked list. It concludes by providing contact information for reference librarians if additional help is needed.