Day in the Life of an Idiot

There is a LFL (just a bookcase) just inside the door at Open Book (which is where the Weavers Guild of Minnesota is now, so I'm there fairly often) that I used to check every time I came by. And then the last two times it's been totally empty, so I'm wondering if someone took the entire contents. I have a bunch of paperbacks (mostly SF) that are surplus to my needs, but I worry that if I take them to the LFL, they'll just disappear the same way.