To write a short notice resignation letter, include your position and effective date, explain your reason and express gratitude. Learn how to write a letter of resignation to quit your job on good terms.Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Learn how to write a resignational letter if you're quitting for personal reasons. This decision has not come easily. You might simply say, "I was recently offered a new position" or, even more simply, "I am writing to confirm my resignation. You might simply say, "I was recently offered a new position" or, even more simply, "I am writing to confirm my resignation. I have been offered a better opportunity in the vicinity of my residence. Dear Ms. Emily Clarke,. Most importantly, what should be included in the resignation letter to an employer?