Leaving a job isn't easy. A short resignation letter is the way to go.Include your name, position, the date of resignation and the intended last day of work in the first paragraph. 1. Enter the date on the letter. Please accept this letter as a notice of my resignation. Learn what a director resignation letter is, discover a template and review multiple examples to reference when writing your own letter. A professional resignation letter can help to avoid burning bridges as well as set you up for a good reference. A professional resignation letter can help to avoid burning bridges as well as set you up for a good reference. The idea is to relay all the important information concerning your resignation while keeping it short and concise. Writing a lengthy resignation letter is unnecessary, and a few paragraphs are sufficient.