How do I buy my textbooks ?   Do you have your book list for your class ?   Yes , I have my list .   Fine . Once you have it , you can go to the bookstore . Do you know where that is ?   Yes , I know where the bookstore is .   OK , so once you pass the gym , it's the first door on your left . Do you know you can also sell your used textbooks there ?   No , I didn't know I could do that . 