Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).A simple yet powerful tool, these letters can express gratitude, boost morale, and improve job satisfaction. Your employees work hard. Use our employee appreciation letter templates to thank your employees for their effort. The message of appreciation should stand alone. Be brief, warm, and sincere. Well done on the presentation yesterday. In this article, we provide 16 employee thankyou letter examples and templates with tips to help you show employees your appreciation for their work. 5 Employee appreciation letter best practices 1) Be timely.