Gov or fill out form 2574. 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.Dear Dr. NAME: This letter is my official notification to you of my decision to resign from Wayne State University. Resignation letters are professional courtesies that extend your professionalism, even in the last days of current employment. 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.