This document provides an introduction to Twitter, including what Twitter is, how it can be used, and tips for getting started. It defines key Twitter terminology like @mentions, retweets, and hashtags. It also discusses how Twitter can be used for professional purposes like brand engagement, customer service, and teaching/learning. While noting potential downfalls like expectations of 24/7 support, it emphasizes that Twitter use should be thoughtful and consider professional identity and guidelines. The goal is to help people thrive online by developing network know-how and filtering information overload.