Helen Keller was a women who was blind and deaf. She was born in 1880. She was also an American writer and lecturer. She learned sign language from Anne Mansfield Sullivan. She taught Helen how to communicate with people by using sign language. She also became the first blind and deaf person to get a college degree and also became an famous author. She sadly died at the age of 88 in 1968.
One notable feature of this model is the move from referring to people as senders and receivers to referring to people as communicators. This implies that communication is achieved as people both send and receive messages.
