When your letter is to more than one person, write out all of their names separately, separating them with commas. For example, "Dear Mr. Hobbes, Ms. Luxe, and Mr. Hopman." For married couples, if one person in the couple has changed his or her name, you only need to use the last name once. For instance, "Dear Mr. and Mrs. Smith."
Companies use it to convey important information and messages. An individual can also use it while writing an application for a job, cover letters, or any formal document. In this article, we will learn how to write business letter in a professional way, parts of business letter with some samples and examples.