Here you will find used books from both my own library & from library sales, auctions & yard/garage sales that I happen upon.
They are pre-read & often not that great in physical quality but remember you are getting them not to be read & set on your bookshelf - they are to be read AND PUT TO USE! You're paying for the information in them only.
If a book is well worn or has staining, I'll be fair with the pricing unless it is a VERY rare specimen.
Let me know what you're looking for & I'll see if I can find you a copy.