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. In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own.In most cases, it is important to have the employee confirm their resignation in writing. Please accept this letter as a formal notice of my resignation. Rather than sending requests to HR Business Partner, use the following Human Resources forms to submit formal requests.