Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).I want to convey my heartfelt gratitude to all the members of the foundation who work tirelessly to make the world a better place for individuals like me. I want to thank you for allowing me to be part of your career journey and appreciating my help and knowledge. The thank you note is one of most important types of correspondence with employers and should follow every employment or informational interview. Thank you for your service in the military. You are a courageous hero and very much appreciated. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Below is some sample which will give you idea to write in your own words. We've got you covered with "thank you" messages crafted to resonate with your mentor, ensuring your appreciation doesn't just get heard but truly felt.