Selling Back Books

While selling back books at the end of the semester may be a good way to get some extra money, don´t sell back the books that provide information relevant to your major and/or future career. You can probably use these books for reference and guidance, and some of the books may be required in future classes. Besides, the bookstore probably won´t give you back nearly as much as you paid for the book, so it may be more worthwhile to keep it.