A gift acknowledgment letter weaves together your nonprofit's appreciation, engagement, and compliance efforts following a donor's generosity. What do you need to include in your donation acknowledgment letter?"Thank you for your contribution of (insert amount of cash donation) on Date. No goods or services were provided in exchange for this contribution. Want to learn how to write and structure donor acknowledgment letters? Check out these tips and sample letters to make a greater impact. The roles of Trustees, Library Director, and Friends are related but distinct. Trustees represent citizen control and governance of the library. The roles of Trustees, Library Director, and Friends are related but distinct. Trustees represent citizen control and governance of the library.