Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).A simple yet powerful tool, these letters can express gratitude, boost morale, and improve job satisfaction. 5 Employee appreciation letter best practices 1) Be timely. A formal appreciation letter or an email to your employees expresses your gratitude for their contribution to your business. You can find 13 samples of employee appreciation letters below. Additionally, you can use our editable templates for employee appreciation cards. Time to express your appreciation on behalf of your company or team. Use this template to create yours and send it through Contractbook. A formal appreciation letter or an email to your employees expresses your gratitude for their contribution to your business.