Amazon's individually-wrapped slices of literary goodness have managed to pull in a few fans since launching in January last year. The company has offered a rare glimpse at its retail figures, trumpeting two million individual sales for its Kindle Singles selection. While authors grab 70 percent of revenue from their middleweight literary missives, Amazon helps itself to the remaining 30 percent -- paidContent pegs Amazon's revenue from the Singles catalogue at around $1.12 million. Those wanting a gentle literary hit can now pick from around 165 existing titles, with some penned by big name writers like Stephen King and Dean Koontz. While their accountants probably aren't massively concerned with the royalty checks associated with these one-shots, you can still take a look at some income estimates at the source below.