The document provides tips for writing effective emails, including: 1. Be concise and brief, and include a clear subject line. Attach any additional documents separately rather than embedding them in the email. 2. Consider the appropriate tone and style depending on the recipient - use an informal style with colleagues and friends, and a more formal style when emailing someone you don't know well. 3. Indicate the level of urgency or importance of the email, and clarify any actions needed or information requested from the recipient. 4. Attach any additional details like documents, photos or videos to provide fuller context without cluttering the email itself. 5. Check spelling, grammar and punctuation to ensure the