You will find informative articles. Please enter a valid email address . A proper letter to the editor is significant in getting your message across the masses. It is used so that the reader immediately knows what the letter is about. Q. The format of the letter … In one or two sentences, provide motivation or encourage readers to champion the cause that you are trying to highlight through your letter like global warming, pollution, traffic problems, etc. This states the purpose of letter in short. The body of the letter can be anywhere from multiple paragraphs for personal letters, to one or two paragraphs for most business letters and other types of proposals.