If you want to get rid of your old books or books that are unused, sell it and you will get your money back. This is really the solution than throwing them in the garbage. So if you have books at home there is an online page that you can sell your books properly. All you need to do is to enter the ISBN and then packed it and ship it for free and get your money back. This is the easiest way ever. So for me, I will check on my cabinets for books too! I am pretty sure I have some that I don’t need to keep anymore.