Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Learn how to write an employee appreciation letter with these templates and examples.Download the template for free (PDF or Word). Dear Attorney- I write today to express my gratitude for your help- thank you. On behalf of the entire team at < company name >, I would like to acknowledge your invaluable contributions to the workplace. Sample Letter of Appreciation 170.3 KB (pdf). Mayors of the District of Columbia Since Home Rule. For example, "Thank you so much for the lovely gift! I can't wait to wear it to my next party. Writing a letter is a simple and meaningful way for volunteers nationwide to say "Thank You" to all who serve.