You will see a notice about the Zero Textbook Cost course sections.
To search for classes with Zero Textbook Cost, Click on "+ Add Courses" button on the top of the Courses Section.
Select "By Textbook Cost" tab and select the "Attribute" pulldown field and select "Class has no textbook-related costs".
Select the "Subject" pulldown field to filter by subject or select "All Subject" to view all courses.
Select the "Course " pulldown field to select a course and click "+ Add Course" to add it to your selection of classes you wish to register for and will show under the "Courses" to the right of the page.
You can repeat this for another course by changing the "Subject" and/or "Course" pulldown fields to select another course and select "+ Add Course" to add it to the list.
Click "Done" when adding course to your cart and you can complete registration by generating schedules, clicking view, Send to Cart, and Register when registration is open.