To view all your Courses that are In Progress or that have been Completed, select the My Dashboard link in the top navigation menu and go to the Courses tab.
From the Courses page, you will be presented with the Courses you currently have In Progress, meaning you've started taking the Course but haven't yet completed the full Course. Each line item indicates how much progress you've made in the Course, which also informs you of how much more progress you need to make to complete the Course. You can click on the name of each Course to go directly to the Course and complete the remaining portion of the Course.
If you want to see a list of all the Courses you've already completed, select the Completed tab.