The message of appreciation should stand alone. Be brief, warm, and sincere.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. "Thank you for always pushing me to be my best. I am so lucky to have such a great boss. On behalf of the entire team at < company name >, I would like to acknowledge your invaluable contributions to the workplace. In this guide, we'll provide tips on how to write a thoughtful and effective thank you letter, along with some sample letters for inspiration. In this article, we explain what an appreciation letter is and how to write one with tips, examples and seven easy steps to write your own.