Some characteristics of business letters are that they use conversational and courteous language, include enough details to make it easy for the reader to understand, are planned to be to the point and are convincing. Writers can accomplish these goals by focusing on who the reader is; making an outline of important details to go in the letter; and using contractions, direct questions and personal references to give the letter the right tone.
The structure of a business letter first includes the sender's address, the date and the address of the recipient. A salutation greets the reader, and the body of the letter follows. After the body comes a closing. The writer may include any additional components as needed, such as supporting documents.