Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).This is one of the most important memos or letters you will write because it builds good will, respect, and cooperation. "Thank you for helping me complete my goals on X. It was great working alongside you! " "Thanks again for being such an amazing teammate! The message of appreciation should stand alone. Be brief, warm, and sincere. In this article, we provide 16 employee thankyou letter examples and templates with tips to help you show employees your appreciation for their work. Learn how to write a genuine thank you note for gifts, invitations, favors, and more! A formal appreciation letter or an email to your employees expresses your gratitude for their contribution to your business.