Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).I cannot express enough gratitude for your guidance and support. Your wisdom has been invaluable to me. Wondering how to say thank you? Our thank you email template and 30 thank you email examples will help you say thank you meaningfully. I would like to take a moment to thank everyone who helped me with my campaign. Below you will find sample appreciation letters to send or email an individual or individuals who have helped you at work. The sample letter is provided for you to: â—‹ Personalize, make copies of and mail out. Suggested topics include expressing gratitude for their service, sharing hopeful messages, well wishes, and positive thoughts.