Should I prime my walls before hanging wallpaper?

Answer: In most cases
Explanation: Walls should usually be primed before wallpaper installation. Primer helps the wallpaper adhere properly, improves slip for positioning, creates a more uniform surface, and can make future removal easier with less wall damage. In some situations, especially on new drywall, repaired walls, glossy paint, or porous surfaces, priming is especially important. Skipping primer can lead to poor adhesion, visible imperfections, or damage when the wallpaper is removed.

Answer: Always
Explanation: Yup.

Answer: Always
Explanation: Yes you must prime all walls before installing any type of wallcovering

Answer: Always
Explanation: It's the only way to have a proper hang and also with the proper primer seals the wall and also makes it easy to remove later on down the road

Answer: Always
Explanation: Yes....it will allow you or the next owners to remove the wallpaper with minimal wall damage.