This document provides an overview of how to use Twitter effectively. It discusses how a single tweet can have a major global impact, and how Twitter allows for two-way engagement and feedback. Various Twitter features are explained, including hashtags, retweets, replies, and direct messages. Examples are given of how journalists can use Twitter to break news, monitor sources, and promote their stories. Best practices are outlined such as filling out your profile, listening to others, sharing content while citing sources, and being authentic in interactions. Useful Twitter apps and analytics tools are also listed.