Reprinted from TidBITS by permission; reuse governed by Creative Commons license BY-NC-ND 3.0. TidBITS has offered years of thoughtful commentary on Apple and Internet topics. For free email subscriptions and access to the entire TidBITS archive, visit http://www.tidbits.com/ Chapter 4 of 'Take Control of Slack Basics' Available Adam C. Engst Slack is all about messages, and that's where Glenn Fleishman takes us next in his serialized 'Take Control of Slack Basics.' Messages are of course tremendously simple at their core ' type something witty and hit Return ' but as you might expect by now, Slack provides a deep set of features that take messaging to new levels. In Chapter 4, '[1]Post Basic Messages,' Glenn touches on the ever-important topic of etiquette before explaining composition-related actions like how to format messages, reference other people, include images and links to Web sites, and use emoji. You'll also learn how to edit and delete messages, navigate within the message list (there are lots of shortcuts), react to a message, mark a message for later, and even link to a specific message. [2][tn_Ch4-mention-and-invite.jpg] If you want to practice with Slack's message-related features, join our public SlackBITS group, which has nearly 125 members and so far has hosted discussions of Slack, the Mac, iOS, and Apple TV. You're welcome to ask anything you like there! Instructions on how to join are in Chapter 1, '[3]Introducing Slack.' Also available to everyone is Chapter 2, '[4]Get Started with Slack.' However, Chapter 3, '[5]Master the Interface,' and this new Chapter 4 are accessible only by TidBITS members, so if you're not currently one, [6]we hope this is incentive to join! TidBITS members receive other benefits too, but what's most important is that the TidBITS membership program has kept TidBITS afloat the last few years ' your support is essential. If you're already a TidBITS member, log in to the TidBITS site using the email address from which you joined to read and comment on these chapters. The full ebook of 'Take Control of Slack Basics' will be available for purchase by everyone in PDF, EPUB, and Mobipocket (Kindle) formats once it's complete. References 1. http://tidbits.com/article/16364 2. http://tidbits.com/resources/2016-03/Ch4-mention-and-invite.png 3. http://tidbits.com/article/16321 4. http://tidbits.com/article/16322 5. http://tidbits.com/article/16343 6. http://tidbits.com/member_benefits.html