This document discusses the layout and structure of a formal letter. It explains that a formal letter includes:
1) A greeting that addresses the recipient by title and last name.
2) An opening paragraph that states the purpose of writing.
3) A body with 1-3 paragraphs providing relevant information.
4) A closing signal that the letter is ending, such as looking forward to a reply.
5) A closing phrase like "Yours sincerely" or "Yours faithfully".
6) A signature and optionally the writer's printed name. Register, or level of formality, is also discussed.