This document provides guidance on effective business communication techniques, including correspondence, telephone communication, and interviews. Some key tips include thinking before speaking, establishing clear messages, choosing the right communication channel, and maintaining a positive tone. When writing correspondence, it is important to capture attention, explain the purpose clearly, and check drafts before sending. When speaking on the phone, properly identify yourself and the company, be prepared, and take accurate notes. For interviews, prepare relevant information in advance and listen carefully to understand the reason for the meeting.