medieval writing bookThe cera (Latin for tabula cerata wax tablet) was a small writing board made from a hard material such as boxwood, beech, or even bone. In the center of the board was a recessed area filled with a layer of dark wax. Writing was done on this wax layer using a stylus a pointed tool made of metal, wood, or bone (Greek: stlos, Latin: stilus). With this tool, characters were scratched into the wax. If needed, the characters could easily be erased or