: Professionalism requires being sincerely tactful and appreciative. Avoid expressions that might irritate or belittle the recipient. Correctness

: Avoid vague language. Use specific facts, figures, and vivid image-building words to make your message stand out and prevent misinterpretation.

: Later editions (such as the 7th edition) include dedicated coverage of ethics, new technology (like email and virtual meetings), and global/intercultural communication.