This document provides information on business letters, including their purpose, format, and tips for writing them effectively. Business letters are formal correspondence between businesses used for purposes like placing orders, inquiries, credit requests, and conveying goodwill. The standard format includes elements like the letterhead, date, inside address, subject, salutation, body, complimentary close, signature, and enclosures. Key aspects are to be concise, complete, considerate of the reader, clear, correct, and courteous in tone and content. Proper letter writing helps ensure persuasive, well-considered communication between businesses.