Letter writing is a valuable skill that involves crafting formal or informal messages to express thoughts, share information, or make requests. It plays an important role in personal relationships, business communication, and professional settings. A well-written letter demonstrates clarity, organization, and a respectful tone, which helps ensure that the message is understood as intended. Mastering various formats—such as formal, informal, and business letters—as well as knowing how to adapt the tone and structure to suit the audience, greatly enhances communication and leaves a lasting impression.