How to write a resignation letter that's effective immediately? Learn how to write a professional resignation letter with our stepbystep guide including 15 resignation letter examples for various situations.This article will guide you through creating an effective notice letter, helping you leave on good terms and with confidence. Explore why a good resignation letter is important and how to write it, and check out our free resignation letter examples. Please accept this letter as a notice of my resignation. You can also include your reason for resigning, but make it as concise as possible. 4. Mention the next steps. You can also include your reason for resigning, but make it as concise as possible. 4. Mention the next steps. The reason you are leaving: The reason can be personal, or to accept a better opportunity.