An administrator may provide employees with Letters of Commendation or. Certificates of Appreciation.Suggested topics include expressing gratitude for their service, sharing hopeful messages, well wishes, and positive thoughts. An employee appreciation or thank you letter is a formal message from an employer that recognizes the former's contribution to the company they work for. A short note from you affirms the value and significance of their contributions and encourages their continued support. 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. This website will provide an overview of what you can expect if selected to serve on a jury.