In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. This resignation letter sample provides your employer with a letter for your file and also suggests that you've done everything you can to remain professional.If your employment contract does not specify your notice period, you should give at least a week's notice before leaving your role. Dear Friends, One of my friends has resigned from the company recently and wants to leave immediately. I am writing to formally resign from my position as a Graphic Designer at Graphic Concepts, effective immediately.