Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Professional resignation letter examples for different reasons.Free templates and writing guide to resign on a positive note without feeling awkward. When resigning for personal reasons, use the following template and examples as a starting point to write your resignation letter. Last Name: I would like to inform you that I am resigning from my position as Account Executive for the Smith Agency, effective August 1. Resignation letter template giving advance notice.