Your appreciation to the donor for their generosity. Learn how to write an employee appreciation letter with these templates and examples.Download the template for free (PDF or Word). I would like to express my sincere and heartfelt thanks for the wonderful and professional treatment received therein. Write thanks you letters to your buyers, those who do add-ons and awards sponsors, along with project leaders, advisors, parents and anyone who has helped you. Below you will find sample appreciation letters to send or email an individual or individuals who have helped you at work. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Form 8936 Electric Vehicles Credit. In-Person Tax Assistance. I will be able to complete my education in a timely manner and continue to support my family.