The Report section gives access to a number of reports allowing you to visualize, analyze, extract, or export data in many ways. The welcome page of that section shows the list of available reports, each with a short description and thumbnail. The section is available by clicking on the Report tab at the top right of the navigation bar. 

 Reports welcome page

To get back to the reports list when a report is opened, select the More Reports link appearing at the top right of the screen, just below the Folio (or Portfolio) actions menu (...) or press the Escape key.