Here’s what consumers have asked with answers from Better World Books staff and previous consumers.
You can probably, maybe able to see them on line somewhere, on an American government site for universities as they are out of the University of Indiana... that's my guess anyway.
It's a non-profit run by volunteers at several sites around the U.S. Many of their books are from public libraries & in good condition often. They also get donations from the public & some of those are in only Fair or Good condition, though lots are in Very Good/Like New or New condition. My favorite thing about BWB is their free book donations to very poor countries! I've bought from BWB for over 4 years & have bought close to a 100 books. Great non-profit!