Textbook information for the next term's courses becomes available on Monday of Week 9 of the prior term. You do not need to be registered for a course to see what the book requirements are, as long as the information has been posted.
If you are in the Student Portal, you can access the schedule by clicking on Campus Info, then Course Schedule. The course schedule is also available on the web (no login required): Central Penn Course Schedule.
1. The below example is a search for Sociology courses (course code SOC) for Fall 2017, for courses offered through the Summerdale campus. (To see Lancaster courses, change the "Campus" drop-down to 'Lancaster.') Click on the button next to "Open & Closed" to see ALL courses, or next to "Open" to see only those courses/sections which have seats available. To see the information for a course/section, click on "Click for Details" in the far-right column.
2. The textbook information is near the bottom of the Course Details page: