Express gratitude in a meaningful way. Thankyou letters should begin with a statement thanking the vendor for their service.Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). The message of appreciation should stand alone. Be brief, warm, and sincere. A simple yet powerful tool, these letters can express gratitude, boost morale, and improve job satisfaction. Check out these sample employee recognition letters for years of service. Or, get ideas to spark your creativity for a speech. Please enter a zip code above to be shown services offered at local service locations.