At the top of your resignation letter, include your first and last name, your street address and your city, state and zip code. 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.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 and easy to use templates. Simple tips for how to write a resignation letter, with free copy-and-paste resignation letter templates. Looking for a sample resignation letter? Download this free resignation letter template in Word, Excel, or PDF format. Example: "Due to unforeseen personal circumstances, I must leave my position immediately. After completing your design, you can print it out, write your letter, and add it to an envelope.