The document discusses key dimensions of effective business communication: 1) Messages should be complete, concise, and considerate of the recipient by including all necessary details for the topic while avoiding unnecessary length that could cause confusion. 2) Clarity is important through the strategic use of clear words and phrases to attract and engage the reader. 3) Courtesy and correctness are also vital, with respect given and taken, and mistakes avoided, to properly convey information and represent the sender.