Selecting one of the buttons at the top of the screen, this will load the relevant contents menu to the left of this pane.
With both the course and reference library, the contents when clicked will firstly show more sub contents, then open up to show more choices, until you have sufficient detail to select the page you need. The page will then appear in this main pane. Re-clicking the hieratical structure of the contents will close up the open items. You will be able to see on the contents the items you have visited so far in the current session, by a change of color.
Should you come across a term in this pane that you need further explanation of, click on it and further help will arrear in the lower definition area. To see this effect click on Visualize here. You can also see lists of defined words from the reference section.