In what’s being described as the first-ever course in a created language, the Los Angeles Times’ Show Tracker reports that HBO will be selling a course in Dothraki for fans of “Game of Thrones.”

The course will go on sale Oct. 7 from the HBO store, while an expanded version will be offered at livinglanguage.com. The language was created for the HBO show by David Peterson, who also created the “Living Language Dothraki” course.

"Like a traditional language course, users will learn vocabulary, grammar, pronunciation, and even cultural notes, which lay out context as well as do's and don'ts,” according to a press release. "For example, since horses are so central to Dothraki culture, many phrases have their roots in the equestrian. Whatever you do, never call a Dothraki warrior an ifak (walker): the ultimate insult since it implies he can no longer ride his horse."

The course will include a book and CD package, offering vocabulary words and pronunciation guides, the story notes.