A simple yet powerful tool, these letters can express gratitude, boost morale, and improve job satisfaction. Your employees work hard.Use our employee appreciation letter templates to thank your employees for their effort. Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Appreciate their hard work and dedication; 2. Praise them for a job done well; 3. 5 Employee appreciation letter best practices 1) Be timely. A letter of appreciation is a formal or casual way for employers to thank employees for their hard work. Explore our templates now!