How to write a resignation letter that's effective immediately? This resignation letter sample provides your employer with a letter for your file and also suggests that you've done everything you can to remain professional.Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. Your resignation letter should be concise, respectful, and professional. "Learn the essential steps and tips for writing a professional two weeks notice resignation letter. Below, you'll find a suggested outline, examples for different scenarios, and tips on writing a resignation letter that works for you. Explain your reasons for wanting to leave immediately, and see if any accommodations can be made.