A personal letter has a generic structure including the date, address, salutation, introduction, body, closure, complimentary close, and signature. It is an informal letter written between two individuals who know each other to share news and updates. The body is the main content section where the writer can tell all they want to convey. Examples of expressions used in personal letters include common greetings for starting or concluding a letter such as "How are you?" and "I will write soon."