Here’s an easy way to get some extra cash without leaving your home! Check out Cash4books! They pay cash for all types of books (including textbooks) AND cover the shipping costs to send your books! A reader, Morgan, told us: just got $24 for an old textbook & Stacey said: yep I got $32!
How to get cash for your used books with Cash4Books:
- Go to Cash4Books & Input the ISBN (found in the first few pages of the books)
- Accept the cash offer for your books
- Print a prepaid mailing label & mail your books to them (They cover all shipping costs!)
- Get paid via Paypal or check
We have personally been paid by Paypal many times from this site! Go here: Cash4Books 
I entered the ISBN for two dozen books and only one was valid, which they offered 55 cents for. Not great.
The books they’re looking for can change from time to time, so you might check back in a few weeks! Good luck!