Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. In this article, we explore what a resignation letter for a better opportunity is, how to write one and provide a template and example.We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Below is a sample union resignation letter. You should check your union's constitution and bylaws to see if it is specific to whom a resignation must be sent. Looking to resign from your job? Learn how to write a professional and respectful two weeks' notice email with our helpful templates and tips. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. My resignation is effective immediately.