You will find a list of 'Built In Reports' in the right hand column which serve as your starting point depending on what you wish to report on (i.e. tasks, checklists, forms etc).
Once you have selected the relevant Built In Report, you can start applying filters to add data parameters to your desired report.
Some reports will have 'Summary & Charts' which will allow you to produce summary tables and charts.
The 'Report Format' section of the screen allows you to pick and choose which fields to include in your report as well as to Sort & Group which will allow you to customise how the report is organised.
The 'Report Settings' section allows you to change several settings including paper size, font size, ruled PDF report, new page for each group and repeat other values with table.
Clicking 'Previewand Resize' will allow you to adjust column width for different fields being reported on and show you the first 10 rows of the report.
Once satisfied with the configuration of your report, click 'Save As' to name and save the report as a Custom Report which will save all the parameters you've set and place the report in your Custom Reports column. You may also Bookmark the report which will add the report to your Bookmarked Reports column as well as your Bookmarks Snapshot on your homepage for quick access.
The 'Export' button will allow you to generate your report in a PDF or Spreadsheet (CSV) format.