A rather short, basic, introductory text to vampire mythology and literature. This is most certainly not a complete guide to vampire mythology and tends to be rather repetitive. The physical book is apparently very pretty, but the e-book is just a regular run-of-the-mill ebook. This may be a book for teenage Twilight fans and the like, but for a serious researcher or just the curious, other books will be more useful.
Better books on the subject include:
Anything written by Claude Lecouteux, but specifically "The Secret History of Vampires" and "The Return of the Dead". Lecouteux writes scholarly books.
For a more informal style, Mark Collins Jenkins has written an informative book titled Vampire Forensics: Uncovering the Origins of an Enduring Legend.