A Plus Testbook is conveniently located right next to California State University, Northridge (CSUN) and supplies a wide variety of new and used textbooks for all CSUN majors. It offers a cheaper alternative, however, than shopping at the CSUN bookstore. While there, customers can also sell their textbooks back, as long as they have their student ID or driver's license. There is also a drop box for donations in front of the store. The friendly staff can help with finding any desired textbook and customers can call to ask about current stocks or for more information. The store has extended hours at the beginning of each semester and are open everyday except Sunday.