A wax tablet is a tablet made of wood and covered with a layer of wax, often linked loosely to a cover tablet. It was used as a reusable and portable writing surface in Antiquity and throughout the Middle Ages.
Writing on the wax surface was performed with a stylus. A straight-edged, spatula-like implement served as an eraser. The entire tablet could be cleared for reuse by warming it to about 50°C and smoothing the softened wax surface.
Wax tablets were used for a variety of purposes, from taking down notes to recording business accounts. They continued to be used for high-volume business records of transient importance until the 19th century.