This article explores the value of sending gratitude messages and introduces guidance and templates for writing them. Learn how to write an employee appreciation letter with these templates and examples.Download the template for free (PDF or Word). An Oakland author shows gratitude for the city she loves. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Thank you for being you. Because of you, I have learned to see the good in people, and more importantly, to see the best within myself. A simple yet powerful tool, these letters can express gratitude, boost morale, and improve job satisfaction. I'd like to thank you for talking with me about the research- assistant position in your seismology lab. You are the smartest, funniest, and kindest person I have ever met.