ANDREW HALL
456, X Street, Y Avenue
Philadelphia, PA-19103
Cell:-(123) 456-7890
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Andrew hall,
We are planning a party to celebrate Colin’s fortieth birthday. The venue is to be our place, so you know that there is a good chance of someone going into the pool, either by their own volition or from being thrown in. Dress will of course not be formal, but I would suggest bringing your swimming costume. Make sure you are here on Saturday by 13:00pm. If you could let me know whether you will be able to attend in the next couple of days it will give me time to arrange refreshments. We would love to see all of you here.
Sincerely,
George