Conversation so far:
how many languages are there in game of thrones
There are at least 11 languages spoken in the “Game of Thrones” world.
what are some examples of languages in game of thrones
Languages in Game of Thrones include the Common Tongue of the Andals, the Old Tongue of the First Men, Skroth, High Valyrian, Low Valyrian, Dothraki, Asshai'i, and Qarth.
who created the languages in game of thrones
David J. Peterson has constructed languages for television and movies such as the Dothraki and Valyrian languages for the television series Game of Thrones.

Question: what else is the language creator known for
Self-contained rewrite: what else is david j. peterson known for besides game of thrones