Learn how to write a resignation letter with our easy-to-use template and examples! 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. In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Explore readymade resignation letter templates tailored for different situations, learn about its essential components, and do and don'ts. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Published in two volumes in 1852. Employee Fingerprints.