The graphic above shows the functions of each button in the navigation bar at the top of the page. We recommend that you do the course topics in order the first time you do the course and then use the Contents menu when you need a refresher on a specific topic.
In addition to this bar, the bottom of every page contains "thumbnail navigation" where you can click to move to the next page in that section without having to select the topic from the Contents menu. The thumbnail navigation looks like this: |