unlike rocks, paperbacks have a lifepan of about 50 years before the spines give out and the pages fox and fall apart.
If there is a paper recycler near you can donate to them.
I'm happy to donate to my library, they go in the sale room and get light of day at the Friends of the Kalama Library sale each year.
Makes me kind of sad my quilt books went in the sale this year rather into the library but it is a vicious cycle, they are so cheap to purchase on the secondary market they have little dollar value.
I have an eye disease and now read on with the amazon kindle app where I can upsize the print. I've been doing this for about 18 months, and just this morning deleted one timers and have 45 books in the electronic library.
Even digital books can become a huge burden to me, I don't want to be saddled with a lot of anything