About David Peterson's work. PDF + AUDIO
So High Valyrian course is finally on Duolingo. Old Gods be praised.
As I'm sure You're aware, High Valyrian language for Game of Thrones was constructed by David J. Peterson. A talented linguist whose work we have seen on movies and tv shows. He creates artificial languages aka conlangs, constructed languages.
Here's a list.
Game of Thrones - Dothraki, High Valyrian
Defiance - Kastithanu, L'Irathi, Indojisnen, Kinuk'aaz
Thor: The Dark World - Shiväisith
Star-Crossed - Sondiv
Dominion - Lishepus
The 100 - Trigedasleng
Penny Dreadful - Verbis Diablo
The Shannara Chronicles - Noalath
Warcraft: The Beginning - Orcish
Doctor Strange - Nelvayu
Emerald City - Inha, Munja'kin
If you were interested in learning High Valyrian, you might as well be interested in learning other conlangs from your favorite TV shows.
On David's very own website, you can find PDFs and Audio to help you with that.
I recommend to use the following wget command to download everything from /work/ directory.
wget -c -r --no-parent http://dedalvs.com/work/