The last time a linguist was a hot commodity was when JRR Tolkien knocked out The Hobbit. That was 77 years ago, or roughly the amount of time it would take to watch Peter Jackson’s entire adaptation. David J. Peterson, who’s part of the Life Is Beautiful Learning Series, hit pop culture gin when his work on turning Valyrian and Dothraki into living languages on Game of Thrones made him something of a hot commodity. Learning Klingon is for tired old nerds. Learning Dothraki is for the hip kids–which is why Peterson helped publisher Random House put together the Dothraki Companion app. Currently, it’s only available for iPhone users. Because a Dothraki wedding with three Android phones is considered a dull affair.