How To Write A Graduation Invitation Letter For Friends . Graduation is the culmination of a number of other smaller accomplishments including extracurriculars, athletics, academics, achievements, and other items that are worth noting. Here is the big list of all invitation wording ideas that covers over 501+ of all parties, events, and related to businesses. Invitation Letter Format, Samples and How To Write An Invitation from www.aplustopper.com Give a confirmation of your presence. For example, a child’s birthday party invitation letter might be informal text, while you might write a graduation party invitation in formal text. Thank them for inviting you.