View the list of Sample Business Letters Letter of Appreciation to Employee Disclaimer: Be aware that some of these sample letters have legal, financial, or other implications. If you are not sure about the use of any letter, consult with an appropriate professional first. Letter of Appreciation to Employee Dear Your enthusiasm and your ability to motivate your employees has resulted in a significant increase in productivity and profitability. If we had an award to give, you would be the prime candidate. Please accept my sincerest appreciation for the fine job you are doing in our sales department.