It's actually 2.2 million copies since January. But, hey, who's counting? http://j.mp/2AzIU5w pic.twitter.com/EF1lWUpIW2
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
That's why I mentioned general non-fiction as the benchmark.
5,000 seems so...low
And most of those are usually sales to university libraries.... :(
why are you comparing academic books to self help books?
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.