The message of appreciation should stand alone. Be brief, warm, and sincere.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. Use one of the sample letters provided here to get started writing a letter that conveys just how much you appreciate someone's actions. Simple steps for how to write an employee appreciation letter to help your employees feel recognized, valued, and indispensable. Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Need to send a thank you email but not sure how to word it professionally? The letter must outline your complaint, the harm you suffered, and how you want the problem resolved. This is called a 30 Day Demand Letter.