Login to the University Store website with your BYUI credentials
University Store website: https://www.byuistore.com/
Click "Account Overview"
Go to "My Curriculum" and choose the semester you want to check up on
Click on it and display the term
Choose whether you want to shop for books (this will take you to where you can compare prices as well) or just print your booklist.
This will show once you click "Begin Shopping"
When you click on "Print Booklist" it will show a page like this one