In this article, we explain what an appreciation letter is and how to write one with tips, examples and seven easy steps to write your own. 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.It was your courage, strength, passion but most importantly your love for others that took you on a mission to change the country for the better. If you read this, I want you to know that we love you so much and that we thank you, hope for the best, and rest well. The following is a letter of appreciation from the King family to the people and community that Matt served. A thank you letter from Dr. Martin Luther King Jr. is not a simple paragraph. Rather, King pours his heart and soul into telling you how grateful he is. I appreciate your support and guidance more than words can say. Thank you for always helping me grow.