From Joomla! Documentation
The Help screen is not entitled a Dashboard but it has all the features of other dashboards. There are numerous panels with links to different types of Help information. All but Joomla Help link to Joomla related sites and open in new Tabs or Windows. Joomla Help opens a page containing links to most of the Help screens that can be opened from the title bar in Joomla component list or edit pages.