At the top of your resignation letter, include your first and last name, your street address and your city, state and zip code. Learn how to write a letter of resignation to quit your job on good terms.Here's what to include in a resignation letter, with examples and templates. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Download a free immediate effect resignation letter template, easily customizable for your personal situation.