Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).I truly appreciate all the time and care you took in telling me about the job and learning more about me. Here's how to respond to any thank you email politely. Get our best tips and 6 example emails to help you succeed. Casual appreciation letter template. You can find 13 samples of employee appreciation letters below. Additionally, you can use our editable templates for employee appreciation cards. The message of appreciation should stand alone. Be brief, warm, and sincere.