Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).I want to congratulate you personally for completing your year with < company name >. It has been a pleasure working with you. You will find three sample letters below, created for various purposes. We encourage you to personalize them with issues that are important to you. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Following an interview, promptly (within 2 business days) write the interviewer a letter expressing appreciation and thanks for the interview. We collect and distribute millions of letters of thanks and support and send them directly to our active, reserve, and veteran military. Below is some sample which will give you idea to write in your own words.