The document discusses professional communication, noting that it frequently deals with scientific or technological subjects and must meet the information needs of the audience, use specialized vocabulary, have a helpful design, and include illustrations. Workplace writing includes various types of correspondence, manuals, proposals, reports, policies and procedures, job descriptions, performance evaluations, and promotional materials. Professional communication fails when the focus is on what the writer wants to say rather than the needs of the readers or listeners. Ineffective professional communication can waste time, increase expenses, cause missed deadlines, decrease productivity, affect promotions, hurt morale, and damage reputations, while effective professional communication can save time, save money, achieve its purpose, and enhance one's career.