Example 1 Resignation Letter That is Short and Simple. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation.Weeks notice is your opportunity to leave a job positively and professionally. Looking to resign from your job? Learn how to write a professional and respectful two weeks' notice email with our helpful templates and tips. Even though two weeks' notice is customary, you may want to shorten your notice to reduce the possibility of being terminated early. To write a resignation letter in case of an emergency, include the name of the company, your manager's name, and your name in the letter. Companies usually prefer that employees who resign give them two weeks' notice before their last day of employment. A resignation letter is a formal written notice stating your intention to leave your job. "If you are going to resign from your position, it needs to be in writing.