Taylor discusses 6 key aspects of writing a resignation letter, including when to give notice, what to say, how to format it, and how to deliver it. The header at the top of the resignation letter (the same thing as a letterhead) should include your name, address, phone number and email.How to write a resignation letter that's effective immediately? I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters. Here's a resignation letter template you can use to ensure a smooth transition process and avoid losing your connections as you move forward. Learn how to write a professional two weeks notice letter with our easytouse template. Welcome to Chicago Resume Expert for Resignation Letter Writing. Many times it is difficult to resign diplomatically and tactfully. What should you include in a resignation letter? My resignation is effective immediately.