The document provides guidance on writing effective business correspondence, including: - Keep correspondence short and focused on the recipient - Avoid negative writing and speak to individuals directly about any criticisms - Re-read correspondence before sending to catch any errors or issues - Common types of business letters include enquiry letters, quotation letters, order letters, and complaint letters - Enquiry letters request information, quotation letters provide requested information, order letters place orders, and complaint letters address issues with products or services The document outlines best practices for different types of business correspondence.