Birger Sellin (born 1973) is the first functionally non-verbal autistic person to become a published author in Germany. His first book (called I Don't Want to Be Inside Me Anymore: Messages from an Autistic Mind) was published in 1993, when he was just 20 years old, and has since been translated into many other languages. He also became the subject of a controversy about facilitated communication because in the past there were many prejudices against non-verbal persons (who were not believed to be able to achieve much). Quite a few non-verbal autistic persons have since been quite successful writers and have been able to describe how it feels to be non-verbal and autistic, greatly improving the understanding of autism, and the technique is now usually accepted. Read more about this pioneering man on his Wikipedia page.