The main one is Sutton SignWriting https://en.wikipedia.org/wiki/SignWriting https://en.wikipedia.org/wiki/SignWriting I first learned about its existence from

The main one is Sutton SignWriting https://en.wikipedia.org/wiki/SignWriting https://en.wikipedia.org/wiki/SignWriting I first learned about its existence from a book by Doyald Young where he showed his design for the first font for SignWriting. As a Hard of Hearing individual, the lack of empathy, let alone accommodation, for people with hearing loss is staggering.