Yep, Rick Riordan's son is dyslexic and has ADHD, so he intentionally made them demigod traits. Percy often has to struggle to read stuff, IIRC the letters shift around on the page. If you asked him what dyslexia and mentioned Percy Jackson he'd probably know what you are alking about.
“Percy, we're going to Polyphemus' island! Polyphemus is an S-i-k...a C-y-k..." She stamped her foot in frustration. As smart as she was, Annabeth was dyslexic, too. We could've been there all night while she tried to spell Cyclops. "You know what I mean!”
