Matching Pairs First TestOnline version Concepts about the letters by Henny Calderon Chay 1 Acknowledgment Letter 2 Order Letter 3 Punctuations 4 Parts of the letters 5 Styles Close, open and standard. Serves as receipt, and it should be sent as the document is being received. (answer to order) Letterhead, date, inside address, greeting, body of the letter, closing, signature, initials, carbon copies, enclose. Full-Blocked, Semi-Blocked, Indented, Blocked Includes more information about what you are ordering, like quantity, model number, or color, the payment terms, and the matter in which the products are to be shipped.