selling school books

Hi, I think the best place would be Ebay. You may already have an account in there. If you don't have it please visit the following link http://www.ebay.com/ You will also find several other items that are being sold and bought through eBay. Most of them are second hand articles. While doing business in eBay look for the ratings of the member you are dealing with. A cautious and experienced person can earn a lot from eBay. Thanks God bless you

try ebay or amazon for a broader buyers.

I don't know that whether there exists BBS in the website of your school or not. If it exists, personally, I think the BBS found by your school is an excellent place for you to sell your books.