Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Your thank you letter should be typed, not handwritten, and formatted in two to three paragraphs as displayed below. In this article, we explain what an appreciation letter is and how to write one with tips, examples and seven easy steps to write your own. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. For questions on any of these forms or for assistance in completing them, call (909) 386-8256. Below you will find sample appreciation letters to send or email an individual or individuals who have helped you at work.