Casymar is an elven paper created by the Sylvanari from the Casmyr, or white birch, tree. The process of removing the bark and pounding it smooth and flat is a skill that takes many years practice and is considered beyond the skill of most short-lived races (humans). When Casymar is created, the bark is not completely removed, but shaved in sections so as not to damage the tree. The resultant material is similar to a thin parchment that is well-suited for writing. Books of bound casymar sheets are highly prized by scholars and wizards alike as their size is not dictated by the normal restrictions upon parchment.