Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Thank you for your wholehearted support. You play such an important role in my professional life. In this article, we offer some tips and examples to help you write a great thankyou letter to your manager. Employee Appreciation LetterSample I would like to formally and sincerely express my gratitude for your amazing work. First, to begin the letter, start with a warm greeting and mention your sponsor's name. Don't jump right into the letter. 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. Item Graphic Check out the new Fulton County Senior Center photos in the Photo Gallery!