This document provides guidance on email writing for professionals. It discusses various applications of email communication in professional contexts, such as formal business updates, job applications, client discussions, and networking. The document also outlines the basic elements of an effective email, including the address, subject line, opening, body, ending, sign off, and signature. Finally, it provides examples of structured emails for different common professional scenarios, such as job applications, requests for quotations, sick leave notifications, and complaints.