In this article, we explain what an appreciation letter is and how to write one with tips, examples and seven easy steps to write your own. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why.Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Thank you for being such a wonderful person and always being there for me. I am genuinely grateful for everything that you do. Read on for five thank-you letter examples and templates, and a little more on gratitude. I'd like to thank you for talking with me about the research- assistant position in your seismology lab. Discover 40 heartfelt thank you note examples for friends, family, and co-workers. Express gratitude with personalized greeting cards.