You may find wood veneer furniture when you are looking through antique stores and used furniture stores. This type of finish was very popular in the early to mid 1900s. A thin layer of a desirable or expensive wood is glued over a thick base or a cheaper but more sturdy wood. If the veneer comes into contact with a lot of humidity or wetness, it will buckle or warp. When it dries out, it generally stays warped and can't be repaired except possibly by an expert furniture restorationist.