How to write a resignation letter that's effective immediately? Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation.Learn how to write a short notice resignation letter with samples. Find a solution to the challenge of resigning on short notice. Pick the perfect wording and convey the message best suited for your situation. When you're unhappy at work, it might be time to go. Here's how to write a resignation letter without burning bridges, including samples and formatting.