Be careful to use an adhesive that won't yellow with age and make sure that the walls are super clean with no streaks. A friend of mine and I did this back in the late 60's. We thought that putting the psychodelic print on the wall would be so much easier than trying to paint it. Oh well, youth and mistakes sort of go hand in hand. It wasn't the easiest thing in the world to do. The paste didn't yellow but we forgot to REALLY clean the walls first and that discolored the fabric in spots. Also, I'd never recommend doing this in a house where anyone ever smokes or burns a lot of candles(soy ones aren't too bad)--both of those things really discolor fabrics.