Autism can severely restrict an individual's ability to communicate with the outside world, and that poses a big problem when it comes to effectively educating someone with the disability. Josh Harris, a young man with autism from the Orthodox Jewish community in Salford, has learnt this the hard way. But having been classified as what his mother describes as 'mentally retarded', he is now enrolled at a Yeshiva, a Jewish school for advanced religious studies, in his community.