1234, West 67 Street
Carlisle, MA 01741
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear CHRIS KLINTON,
Many thanks for getting the statistical analysis to us this morning. I know that there was a lot of information to gather and look through, and we are impressed that you managed to meet our tough deadline. The information you have provided is vital for the whole business next year, and it was essential that the information was as accurate as it could be. If you need anything from us in the future please do not hesitate to give me a call.