In this article, we discuss what to include in a professional resignation letter and we share examples of resignation letters you can use for reference. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company.Find out how to write the perfect resignation letter, including examples and templates of a professional resignation letter. In the subject line of your email, please make sure to write your name and "Resignation Letter and Notice" or "Letter of Resignation. Please accept this letter as a notice of my resignation. When an employee resigns, nothing stresses out employers more than the proverbial hole it will leave. While two weeks' notice is standard, depending on your circumstances, you could leave your job immediately or offer more notice.