I've recently started worrying about a pile of books, but for an unrelated reason: they don't hold up well. Stacked on top of each other, the books above crush

I've recently started worrying about a pile of books, but for an unrelated reason: they don't hold up well. Stacked on top of each other, the books above crush the spines of the books below. And more disturbingly, they get covered in dust and, if the humidity is high enough, mold. Then they attract a small bug called book lice. They're reportedly harmless to humans, but it's awful to see something crawling across the pages of my textbooks. My house is not a dump, but it's ground level and not temperature controlled. Somehow, the little critters reached my books stacked high on a ledge in the far corner of my room. As soon as lumber prices go down, my plan is to build a sealed bookshelf and line it with silica packets. I'll have to toss my books into ziplocs and freeze them before loading the shelves. What a mess.