Personally, I can’t imagine unwanted books but if you got something that’s not to your reading taste, why not “trade it in” at a Little Free Library near you?
There are lots of them around, including 4 in my own neighborhood.
And we have all these withing a 10-mile radius:
Find out what’s near you here.
Our library is always open to trade, browse, borrow or donate.
Greenbriar Little Free Library #33664