Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).In this article, we offer some tips and examples to help you write a great thankyou letter to your manager. An employee appreciation or thank you letter is a formal message from an employer that recognizes the former's contribution to the company they work for. In the first sentence, say you're grateful for the employee's amazing work. Specify what they've done recently to impress you. Here's information on when and how to say thank you to your manager, with examples of the best way to relay your appreciation to your boss. Sometimes it's hard to find just the right words. Here are some sample thank you notes you can customize to fit your own unique situation. A wide variety of state and federal paperwork to file when you hire an employee.