Explain why you're leaving. Briefly explain the reasons you've decided to leave, both related to your current job and to your new position.Were you offered a better job? A simple and straightforward resignation means stating directly what you want to do — which is resign. Don't forget to add the position you're resigning from. No. Your resignation letter should be limited to an announcement that you are resigning and the effective date. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. A retirement letter of resignation is more than just a formality. A good resignation letter should be clear, concise, and courteous.