Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Once again, I thank you for all the hard work you have done for the company and your dedication to delivering quality results. Below you will find sample appreciation letters to send or email an individual or individuals who have helped you at work. "I am very grateful for your assistance with my senior project this semester. " "Without you, I wouldn't be the student, or person, that I am today.". Compared to a simple note, you can go into more detail about what you're thankful for with a professional letter, and explain how their part has benefited you. How to draft a proper Thanks Letter for starting on a project or other business with a client? Download this professional Thanks Letter for cooperating! My heartfelt thanks and gratitude go out to all of your staff who cared with great compassion for my husband in his last weeks of life.