Luckily, when you enrol in a MasterClass, you will always have access to the class workbook. When you sign in to your account and go to your class, you should see the lesson plan. At the bottom of the lesson plan, you should be able to access the workbook and return to it whenever you want.
If the class workbook isn't appearing for some reason, you can submit a request here, and we will be sure to help you out!