The store Covogoods on Etsy has a ton of great concealment resources including this book stack concealment wall. They have it listed as an electronics hider, and we think that’s a great use for it.
Is that modem and associated cabling cluttering your table or desk? Look at adding something like this to it and hide it behind a small wall of books.
You can tell that the powers that be at Covogoods goes to great links to make attractive, realistic, sometimes color coordinated books to make their goods. These are real books, just modified to allow you to put to your own use.
They offer many different options on their store. If this is something you are interested in, we recommend browsing through their selection to find something that fits your needs.