The drop-down menu Web Managers includes a page Learn WordPress with some recommended web links to general WordPress training. It is recognised that these are not an introduction and quite technical in places. There is also an early video specifically on SiteWorks.
The Training Team have developed an Introduction to SiteWorks Zoom session and a comprehensive training workbook as part of the SiteWorks on-boarding process. Sessions have already been held internally for the SiteWorks volunteers.