Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward.If you have an offer from another firm and can start immediately, is it appropriate to hand in a resignation letter without providing two weeks' notice? You want to give at least a two weeks' notice. I regretfully have to inform you that, after much thought, I have decided to resign and please accept this letter as a formal notice of my resignation. It is with sadness that I write to tell you that I am resigning from The New York Times. I joined the paper with gratitude and optimism three years ago. Learn how to write a heartfelt resignation letter with our guide. Includes examples and tips for a sincere and graceful farewell. In a handwritten note on the resignation letter, he thanked Henry for mentoring him, and giving him "the tough tasks to take on, like the arena.