This was the moment it sunk in that "global sales" is a real thing. Since I first saw that post for Sotto Voce on sale at Amazon-india, I've also seen it for sale in the U.K., Australia, South Africa and other global sites. That's a moment that can leave you speechless for a few moments.
So, if you want to read Sotto Voce, it's available everywhere, including the IP Web Store, Amazon, and Powell's Books.
And if you've read it and enjoyed it, I'll repeat what most authors say—that a high ranking on Amazon and Goodreads means the world for the success of a book (and for a writer's anxious nerves).