Reading is great too, even better cause he will be able to note words he's not familiar with on the go rather than pause the cutscenes. I've thought about Dragon Age but I'm not sure if he will manage to deal with the difficulty. Can you slide through the game rather easy on easiest difficulty setting in both Dragon Ages?
Mass Effect is a must-buy too, he loves himself some space opera.
I've bought Kingdoms of Amlur for myself just today as I'm RPGs fan and I will check if Casual setting won't be too hard for him.
Wicher 2 is also thing I wish to give him. I'm from Poland where this franchise is super-popular not because of games but because of books. I guess he will find returning to the world he knew from novels quite fun. I also remember thet medium difficulty setting wasn't so much of a challenge so he might deal with casual.
Thanks for suggestions, keep it coming :)