David J. Peterson created two complete languages for Game of Thrones based on only a few lines of dialogue in the books. Watch as David reviews people on the attempting to speak Dothraki and High Valyrian. Do any of them impress him?
David J Peterson created Duolingo's High Valyrian course which you can find here-
https://www.duolingo.com/course/hv/en/Learn-High%20Valyrian
