Yes, accent wall décor can indeed be easily installed and removed. This largely depends on the type of décor you choose. For instance, peel-and-stick wallpapers and decals are popular choices for accent wall décor. They are simple to apply and can be removed without causing damage to the wall. Similarly, lightweight wall hangings, like tapestries or framed prints, can be hung using removable hooks or adhesive strips that don't leave marks or residue. It's important to remember that the ease of installation and removal will also be influenced by the wall's surface and condition. Always follow the manufacturer's instructions for the best results.