Hello, I'm a reading freak, and as such I believe it is my duty to help you expand your depth of knowledge of legends through reading. I will present you with some of my personal favorites. I would like to remind everyone that the books I recommend will be for pleasure purposes only, so please don't attack me if you don't agree with the ideas represented in some of the books.

On Vampires:
The Twilight Saga- one of the most top-selling seires of all-time. Written by Stephenie Meyer. Quite different from most personifications of vampires.
Night World: Books 1, 2, and 3-Deals with stories of different people all involved with a secret society of werewolves, witches, shape-shifters and vampires.
Bram Stoker's Dracula-Classic. In my opinion, a bit dry when reading, but the overall story is interesting. Very symbolic and based on Dracula the Impaler, an actual person from history. Foundation of many modern movies, comic books, etc. mostly because of vampires' allergy to sunlight.
Anne Rice's Series
Salem's Lot-Stephen King's, so obviously horror is involved and the vampire is the bad guy.
Vampire Kisses Series-very similar to Salem's lot in that the vampire lives in a decrepit mansion on the outside of a good ole' American town with a butler to do his building, only in this series the main vampire is good, but the story itself is a little cheesy.
Night Watch-awesome book/s as there are three in the series. Written by russian author Sergei Lukyanenko. It doesn't actually give much mention to vampires except in the first story, but it's very original and an amazing read.
The House of Night series- A girl gets cast into a finishing school to become a vampire, and has a whole bunch of drama placed upon her, possibly by her own actions, in the process. The next one in the series, Hunted, comes out in march by the way.
The Sookie Stackhouse novels- A barbaid from rural Louisiana meets a vampire that ends up pushing her into a world of the occult. She ends up getting beat up a lot, and has a few steamy relationships on the way. The next one comes out on May 5, and the first season of True Blood comes out a week later.
Cirque du Freak- A boy goes to a strange circus, and through a series of events becomes the apprentice of a vampire. There are twelve in the series, I believe.
Vampires:The Occult Truth- This is not a novel, but more a look into the legend that is the vampire. Written by Konstantinos, it explores the different types of vampires mentioned throughout history, and their origins.
Vampires and Vampirism- Is a very textbook-y approach to the history, and legends of vampires. It was written by Montague Summers who edited (I believe) the Witch's Hammer.
The Science of Vampires- Another persuasional type book. The author has a PhD, and personally, I think she just writes beautifully. But, the book goes into depth about the definition of vampires, and the science of their infamy, including the actual genetic potential for vampirism.
Day Watch: Also by Lukyanenko. A follow up to Night Watch, concentrating on the darker side of things more.
Twilight Watch: " " ". This book envolves more of vampire legend.

On Witches:
Harry Potter series-need I explain?
Night World: Books 1, 2, and 3-above
Tamora Pierce's series
Old Magic-about giral and guy who travel back in time to reverse the curse of an evil sorceror. yes, I know, it sounds ridiculous in despcription.
Night Watch
Wicked- the story of the Wicked Witch of the West from her birth to her downfall.
Day Watch
Twilight Watch- The main focus of the first story in the book involves a witch, and addresses the differences between enchantresses, magicians, and witches.

On Werewolves:
Twilight Saga
Night World: Book 1 and 2-very little mention, but idea that they are uncontrollable and have an insatiable appetite is mentioned
Night Watch-'' '' '' '' '' '' ''...
Day Watch
Twilight Watch- a smaller part in the story. Involves a foster family of werewolves.

For Further Reading Try...
www.stepheniemeyer.com
www.barnesandnoble.com
www.amazon.com