Learn how to use an effective letter of appreciation to show your gratitude for job opportunities, job search referrals, and other kindnesses. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why.If you need to show people how much you value their loyalty, check out our years of service sample letters for 10 years, 20 years, and more. Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). I want to convey my heartfelt gratitude to all the members of the foundation who work tirelessly to make the world a better place for individuals like me. Thank you for taking the time to meet with me at the Central Florida Career Fair today. In this guide, we'll provide tips on how to write a thoughtful and effective thank you letter, along with some sample letters for inspiration. A letter will be mailed to each family to explain this in detail. I am very grateful for the numerous financial contributions you have made in support of my education.