Ending a business letter by adding notations of enclosures and copies involves adding extra lines below the letter's signature line. An enclosure notation lets the recipient of the letter know that something is enclosed in the envelope in addition to the letter itself. A "cc" is a copy notation that informs the letter writer who else is getting a copy of the letter.
An enclosure notation appears a couple of lines below a business letter's signature line. The enclosure line can simply say "Enclosure." It can also specify how many enclosures are included by placing a number after the word "Enclosure," either setting the number apart with a colon or placing it in parentheses. In some cases, the actual enclosures are listed with the enclosure notation.
A "cc" notation uses an abbreviation "cc" for "carbon copy," an abbreviation that was standard in the days when carbon paper was used to make copies of letters on typewriters. Some people now translate "cc" as meaning "courtesy copy." A "cc" notation is followed by a colon and a list of every person receiving a copy of the letter. If the writer does not want the recipient of the letter to know who else is receiving a copy, the notation "Bcc," standing for "blind carbon copy," is used instead.