Vintage book wallpaper
If you're on the look out for something a bit different for your walls, I'd very much recommend a trip over to the Tracy Kendall website, which, despite being one of those annoyingly hard-to-use flash sites, has some fantastically quirky wallcoverings - like this vintage book wallpaper.
Yes, boost your library (from a distance) by slapping up a couple of rolls of this. It'll also save you a bit on shelving too. Unfortunately, there's no details of pricing on the website - but as it's designed to be used sparingly on a feature wall, I'd expect the price to be a bit higher than you'd pay at your local B&Q.
Find out more at the Tracy Kendall website