Timing for the purchase of books is at the discretion of each individual student. Many students elect to begin purchasing books once they have registered for classes, while others wait until on or after the first day of class. In addition, purchasing textbooks in advance of the first day of class may minimize time waiting in bookstore lines.
For those students who are buying books on financial aid, more information can be found here.
Edison now offers an alternative to buying/selling books with a textbook rental option. More information is available here.