I have bought the books but I hear they are very detailed, maybe a little too detailed and a bit Silmarillionish. I think I will have a second watch of the series first (and see the second half of season one).
I just read the Hunger Games trillogy and liked about 2/3 of it. It was interesing to hear that LeBron was also reading that series during the NBA finals as part of his staying calm and relaxed uring the playoffs (no twitter, no facebook etc just books wow, maybe us English teachers do know something!).