Professional writing is a style of communication required by certain professions that uses precise terminology. There are different types of professional writing such as business, technical, and communication writing. Professional writing aims to communicate clearly while avoiding common mistakes. It provides resources on developing effective communication skills through exploring aspects of experience, expressing them clearly in writing, and following mantras of communication with examples. The document examines how people and businesses communicate through a video with business writing tips, an article with examples of good and bad writing, and links on improving communication skills. Overall, it discusses the importance of professional writing online and provides tips for becoming a better writer.