Over the past 10 years we've seen a significant increase in the popularity of vampire books. But did you know that these books were popular quite a few years before Twilight was ever published?

1. The Increasing Popularity of Vampire Books Yes Virginia, there were other vampire books before Twilight

2. Over the past 10 years we've witnessed an interesting phenomenon: Vampire books are selling in record numbers

4. And it's true, those books helped put the vampire book genre on the New York Times bestselling lists.

14. Southern Vampire Mystery Series (#11) by Charlaine Harris 2 more books planned For 2012 and 2013

15. True Blood Season 5 Starts in May 2012

16. Anita Blake Series (#20) by Laurell K. Hamilton No end in sight!

17. The Vampire Diaries by L.J. Smith New character series are being released

18. The Vampire Diaries Season 3 Is underway

20. There's a new Twilight movie underway;