User blog comment:Dragonfire8/Peasants being able to read/@comment-5036924-20120301204825/@comment-4769526-20120301214921

Hunith (when she wrote a letter in the dragon's call), Gaius (if he counts as a servant) and anyone who's a scorcerer (they'd need to be able to read to learn spells). I assumed that since Merlin and Gwen, who have been raised like any other peasant, can read and write, most other people in could too.