Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Sample 1: Dear Donor(s), I am writing to express my sincere gratitude to you for choosing me as a recipient of the Ogontz Campus General Scholarship. B) Services performed on trains which either begin or terminate in the City. The message of appreciation should stand alone. Be brief, warm, and sincere. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Gerhard: I wanted to express my sincere appreciation for all the legal assistance that you have provided to my family over the past several months. I will be able to complete my education in a timely manner and continue to support my family. Thank you again for having such a wonderful foundation.