Communication to let others get to know with a written text. The aim is to convey the idea of the message sender is the author to get more readers is to focus on the subject of grammar and word usage.
Communications with the perception that others have written messages. Is intended to convey the idea of a messenger is the author to the audience is the reader. Rather than focusing on the use of words and grammar.
Communication to others get to know with the text as written. The aim is to convey the ideas of the sender is the author to the audience's readers. Rather than focus on the subject of the use of words and grammar.