Subject: It is a brief statement mentioning the reason for writing the letter. It should be clear, eye catchy, short, simple, and easily understandable. The Greeting: It contains the words to greet the recipient. It is also known as the salutation. The type of salutation depends upon the relationship with the recipient. It generally includes words like Dear, Respected, or just Sir/Madam. A comma (,) usually follow the salutation. The Body Paragraphs: This is the main part of the letter. It contains the actual message of the sender. The main body of the mail must be clear and simple to understand. A body of the letter is basically divided into three main categories.
For instance, in a typical job application, the problem is that the company or organization needs a position filled, and more importantly they need someone who can do the job well and help the organization achieve its mission (which may be more profits, or it may be to save children in Darfur or to end global warming or to cure cancer). You arouse their interest by telling them that you’re the right person for the position and by promising to help them achieve their mission.