In this article, we discuss what to include in a professional resignation letter and we share examples of resignation letters you can use for reference. A one (1) week notice letter is written notification provided to an employer that an employee will no longer be working with the company within seven (7) days.In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. You can use this resignation letter sample as a base to write a letter with your own name, dates, and other information. The employee should make sure to include their name, current job position, a brief explanation of why they are resigning, and what date their last day will be. A resignation letter is a form that gives notice to an entity or organization of an employee's intent to quit their job.