Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Your employees work hard. Use our employee appreciation letter templates to thank your employees for their effort. The message of appreciation should stand alone. Be brief, warm, and sincere. In this article, we provide 16 employee thankyou letter examples and templates with tips to help you show employees your appreciation for their work. 5 Employee appreciation letter best practices 1) Be timely. Two things: be honest and be specific. Both things help you avoid sounding like you're just sucking up for the sake of getting on the boss's good side.