Write clearly and concisely. Have someone review your letter before submitting.Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Writing a letter is a simple and meaningful way for volunteers nationwide to say "Thank You" to all who serve. Thank you for taking the time to meet with me at the Central Florida Career Fair today. West Palm Beach native receives Letter of Appreciation for end of tour award aboard U.S. Navy warship.