First, let's talk about how your progress will be saved. When you get to the end of each page, hit the "Complete" button. This will mark the page with a tick so that, the next time you log in, you'll know exactly where you were up to. You'll find a "Complete" button at the top and bottom of every page.

Each time you hit one, you'll see your progress bar update. The progress bar is at the top-left corner of the page, just above the navigation bar.