Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward.In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Sample Resignation Letters. I regretfully have to inform you that, after much thought, I have decided to resign and please accept this letter as a formal notice of my resignation. Dear (name of manager),. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. I appreciate your support and understanding.