The book gives you a chance to enter back into instantaneity. That this is nerve-wracking, moving and insightful rather than tedious is because of the quality of the authors but even more, I imagine, the ability of the editors, Nadia Idle and Alex Nunns. A book of tweets sounds like a dumb idea but isn’t at all. It is not going to replace other types of memory, whether an Egyptian-revolution PowerPoint or, say, the excellent Roula Khalaf’s reporting trip back to Tunisia in The Financial Times last Saturday.

Read more in The New York Times Magazine