Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Learn how to write a heartfelt resignation letter with our guide.Includes examples and tips for a sincere and graceful farewell. 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 craft a professional resignation letter without notice with our guide. Use an attractive header with your personal contact info, include the recipient's name, company and address, and include the date. Use this resignation letter sample to advise an employer that you are resigning because the job wasn't a good fit. Use one of our resignation letter templates.