The document provides guidance for teachers and school library media specialists on using Twitter. It outlines 20 specific ways Twitter can be used, such as asking other educators for book or lesson recommendations, sharing resources and events, and promoting the school library. The document then reviews how to set up a Twitter account, create a profile, post tweets, reply to other tweets, and share links, photos and videos through other applications. The overall purpose is to demonstrate how Twitter can be harnessed to help educators connect, collaborate and promote their work.