Thank you so much for your contribution to keeping the public safe and healthy! I am very thankful for you and your hard work.Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Thank you for bringing happiness to our office! Your hard work and originality are things that inspire us all! The message of appreciation should stand alone. Be brief, warm, and sincere. An employee thankyou letter is a message to an employee recognizing their hard work and showing appreciation for their efforts. Thank you for all your wonderful contributions during our recent departmental restructuring.