An addendum should concern something noteworthy. For example, most college students do worse early on, so an addendum is rarely necessary for poor performance in the first year of college.

How to Annotate Addendums in Business Letters. A business letter annotation is a note that informs readers that there are additional items sent with the letter that should be reviewed. Annotations ...

Resume Example: Addendum Example: After the intro shown in the resume example, my detailed Press experience fills a full half page of a two-page resume.