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.Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Here's how to write a resignation letter when you're quitting for a job with a better compensation package, and you want to provide your employer with a reason. Simple resignation letter and email message samples to use to quit a job, as well as tips for what to write and how to resign. How to Use Two Weeks Notice Letter? In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. Here's a list of steps to write a resignation letter that lets you end the previous job on a positive note and maintain a good relationship with your boss. How to Use Two Weeks Notice Letter? A resignation letter that takes a bit more time to outline your growth as a result of your employment.