I don't have a long time to respond, but thanks to everyone for your advice. It has been so helpful.

He is OBSESSED with Percy Jackson, and I couldn't even count how many times he has read the books. He and his friends frequently talk about being demi-gods, and it is a game he plays DD11. I didn't realize there was anything in them about dyslexia. I will definitely read up on this and how I can use it to talk to my DS. Thank you!!