Boy do you have a lot of books. Must take up one whole wall, at least. I have lots of magazines. I have maybe 40 books, but magazines are my thing. And I have so many duplicates of them. I arranged them by magazine and then by date and I had 3 of quite a few of them. Shame on me. I often order a kit from the magazines so I use them (of course I read them cover to cover) but I rarely often go back through them. If I order a kit, I leave that magazine out until the kit comes and put the magazine with the kit, otherwise, they sit on shelves. I should get some old ones out and check how quilter's use to put quilts together, without all the new tricks we have. You need to price all your books in case of's (which we don't want to think about, but it will happen someday that someone will have to go through all of our quilting supplies).