I have three boys on the spectrum. My youngest, age 10, was really struggling with reading, to a point where an educational psychologist thought he had dyslexia. After 9 months on Nessy, he now has a reading age of 12. I was so impressed, I put my 12 year old twins on too. My one twin now has a vocabulary age of 19 years! Absolutely the best money I've ever spent. Thanks Nessy!