Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).I want to thank you for allowing me to be part of your career journey and appreciating my help and knowledge. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Learn what an employee recognition letter is and how to create one using the provided template and example. An employee appreciation or thank you letter is a formal message from an employer that recognizes the former's contribution to the company they work for. I really appreciate that you took so much time to acquaint me with the company. It is no wonder that California. I want to express my sincere appreciation to each one of you for believing in me. Thank you for being an invaluable part of our team.