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. Explore why a good resignation letter is important and how to write it, and check out our free resignation letter examples.The following are the things to keep in mind when writing an immediate resignation letter: Write the date first. Explain only necessities. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. State the Position You're Resigning From With An Effective Date. Trying to quit your day job? Learn how to write a resignation letter while maintaining positive work relationships.