I'm on the Friends of our library, and we welcome quilting books for our book sale room as well as our annual tent sale.

It has been suggested to check with your local library. My library takes donations and the "Friends of the Library" sell them in bi-monthly book sales. The profits go back to the library to pay for new books, replacement books and other readable materials. (Not salaries or other expenses) The group makes about $4000-$5000 each sale. It keeps the books in use and the prices are very, very reasonable. Books are 3 for a dollar except for new best sellers that are all under $4.

I donated many of the books from my classroom library and my quilting books in order to thin out my stacks.

I was lucky (I guess) when I started losing my sight and put my quilt books up on ebay many were still selling. Now, as noted, people generally want ebooks or pdf patterns so they don't have to store bulk books. Most of mine sold, some for lots, and I was happy with the outcome. Today I wouldn't bother, but you Should sign into ebay, do a search for Quilt Book, and then go down the left to Sold items. then use the drop down menu to select highest price. You'll see by scrolling what is sworth putting up
Gee's Bend, $1200.00... most? unsold.

books that weren't worth my time I donated to the local library sale.

A hospital has many waiting room and I took all my not wanted quilt books and left them in the rooms. I put a note inside each one that said Free to take. Not long after I was in one of the waiting rooms and there was one quilt book left in the rack.

If you are in the Boston area, there is a resale shop called Make & Mend for secondhand crafting and sewing supplies and books that can make good use of your donations.

I understand the Quilts of Gee's Bend book selling for a lot. It isn't a quilting book. They are big coffee table art books. I've seen the ones that were signed by all the ladies who contributed sell for $500. First editions sell for a lot too, as always. Twelve hundred is a bit much but then you might get lucky and snag someone. You never know.