Letter writing is the most important component of the English language. Whether appearing for an examination and facing questions from the English section, or applying for leave, you must know how to write a letter . Learn how to structure, format, and proofread your formal letters for professional purposes. See examples, templates, and abbreviations for different situations and recipients. Knowing how to write a formal letter is a very important life skill. Learn how to write formal and informal letters with different purposes and styles. Find out the format, structure, and tips for letter writing with solved and unsolved examples.