Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Check out these sample employee recognition letters for years of service. Or, get ideas to spark your creativity for a speech. The message of appreciation should stand alone. Be brief, warm, and sincere. Thank you for your service in the military. You are a courageous hero and very much appreciated. Thankyou letters should begin with a statement thanking the vendor for their service. Manager and Council people a letter in a report stating about the incident.