@bix It's super controversial. I could track down a bunch of articles and blog posts probably. If I remember to, I will later. Also the subject of many conference presentations. Usually, genrefication is applied more to fiction than nonfiction, I think, so I'm not sure you would be reshelved. The question is about why you're organizing the way are. I tend to prefer DDC/LoC + genre stickers on the spine. I think library classification systems were designed with physical collections and physical card catalogs in mind, and I know people have been working on new ways of describing items, though I'm not sure if they're also working on new ways of systematically classifying them.