To write a short notice resignation letter, include your position and effective date, explain your reason and express gratitude. Please accept this letter as a notice of my resignation.Learn how to write a resignational letter if you're quitting for personal reasons. To leave your role on a professional note, learn how to write a resignation letter. As a bonus, check out our samples. It's time to quit the job, and you're not giving two weeks' notice. Here's how to politely write a resignation letter, effective immediately. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. We've prepared several resignation letter samples and templates for crafting a concise yet professional resignation letter.