Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).You can find 13 samples of employee appreciation letters below. Additionally, you can use our editable templates for employee appreciation cards. A formal appreciation letter or an email to your employees expresses your gratitude for their contribution to your business. The message of appreciation should stand alone. Be brief, warm, and sincere. Telephone Internal Affairs (520) 351-4750 and express your gratitude; or; Write a letter to the Sheriff explaining your appreciation for the employee's actions. Learn how to write an employee appreciation letter for different circumstances, work relationships and company cultures using our templates and examples. 5 Employee appreciation letter best practices 1) Be timely.