A good book, if a bit scattered and disorganized. Ramsland really covers three topics, whatever the title might actually imply about the book's focus. First off, she discusses the cultural history of vampires, from Eastern European folklore, to Bram Stoker's iconic re-invention, to the dawning of the vampire as Romantic anti-hero. She also discusses the modern development of the vampire into a sort of New Age god, and its implications in modern spiritual circles.
Secondly, she talks about the science behind vampires -- a hypothetical "what if" that discusses how vampires might biologically exist. This is all speculation of course, but it's very interesing speculation: everything from the microbiology necessary for immortality, to a vampire's possible digestive system, to the possible explanations for some of the common "vulnerabilities" found in vampire myths. For this section, she draws primarily on the European figure that has become popularized in Western literature, and creates a "composite" vampire from the most common legends and myths. Otherwise, it would be nigh on impossible for her to catalogue all the different aspects of the vampire myth.
Thirdly, Ramsland discusses real cases of vampire-related crimes. Ramsland has a Ph.D in forensics, and this is one of the areas where she shines. She divides "vampire crimes" or "vampire criminals" into three types: 1) Clinical vampirism, or those crimes committed by people who delusionally believe themselves to be vampires or otherwise commit their crimes under some kind of psychotic delusion. 2) Those with psychosexual paraphilias or other disorders that lead to a connection between blood and some kind of excitement. These individuals don't actually believe themselves to be vampires, or that the blood has any special power, but there is a deep connection between blood or mutilation, that leads them to such grotesque crimes. 3) Those few who commit crimes out of the "coolness factor" of the vampire, often teenagers who become involved in the cult-like magnetism of vampire mythology and immerse themselves in it. She examines all three of these types of crimes and criminals with interesting case studies and examinations of just how the vampire mythology has affected these individuals.
The book is really a wealth of intriguing information. It's one detracting point is that it is rather disorganized. Her "cultural study" is split between the first and last parts of the book, and the scientific discussions are scattered throughout. There's a method to the madness, definitely, but she sometimes gets quite off topic and doesn't return to a given point for some while -- sometimes not for several chapters or more.