This document discusses deafness and the Deaf community. It notes that around 9 million people in the UK are deaf or hard of hearing, representing about 1 in 7 people, and there are approximately 50,000 British Sign Language users. The Deaf community is considered a linguistic and cultural minority similar to an ethnic group. The document then profiles two individuals, Petra and Paul, who have different relationships with deafness and the Deaf community. It also briefly discusses sign languages around the world and the history of technology used by deaf individuals to communicate. Finally, it outlines some popular social media sites for the Deaf community.