Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Professional resignation letter examples for different reasons.Free templates and writing guide to resign on a positive note without feeling awkward. Explore why a good resignation letter is important and how to write it, and check out our free resignation letter examples. To help you draft your resignation letter like the example above, here's a checklist of what to include: What to include in a resignation letter.