It is spelled correctly but maybe he really isn't? I am ADD and Dyslexic and a member of Mensa and the DNA Society: National Dyslexic's Association 🙂-
I saw a bumpersticker recently on a car that was passing me on the highway. In bold letters were the initials, "D.A.M." and underneath this in smaller letters, it said "Mothers Against Dyslexia."